Folders except Inbox not displayed in roundcube - kolab 3.0

[Dirk Werner]

Hi,
I have set the debug level of roundcube to 1, now
/var/log/roundcubemail/errors contains more information:

[23-Aug-2012 19:54:50,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (POST /roundcubemail/?_task=login&_action=login)
[23-Aug-2012 19:54:51,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=mail)
[23-Aug-2012 19:54:51,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET /roundcubemail/?_task=mail)
[23-Aug-2012 19:54:52,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=Contacts&_action=list&_remote=1&_unlock=loading1345751473293&_=1345751473294)
[23-Aug-2012 19:54:52,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=Contacts&_action=list&_remote=1&_unlock=loading1345751473293&_=1345751473294)
[23-Aug-2012 19:54:52,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_action=getunread&_remote=1&_unlock=0&_=1345751473295)
[23-Aug-2012 19:55:05,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=settings)
[23-Aug-2012 19:55:11,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=settings&_action=edit-prefs&_section=general&_framed=1)
[23-Aug-2012 19:55:31,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=logout)
[23-Aug-2012 19:58:55,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (POST /roundcubemail/?_task=login&_action=login)
[23-Aug-2012 19:59:23,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=mail)
[23-Aug-2012 19:59:23,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET /roundcubemail/?_task=mail)
[23-Aug-2012 19:59:24,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=Contacts&_action=list&_remote=1&_unlock=loading1345751746105&_=1345751746106)
[23-Aug-2012 19:59:24,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=Contacts&_action=list&_remote=1&_unlock=loading1345751746105&_=1345751746106)
[23-Aug-2012 19:59:24,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_action=getunread&_remote=1&_unlock=0&_=1345751746107)
[23-Aug-2012 19:59:30,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=settings)
[23-Aug-2012 19:59:34,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=settings&_action=edit-prefs&_section=general&_framed=1)
[23-Aug-2012 19:59:38,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=settings&_action=edit-prefs&_section=folders&_framed=1)
[23-Aug-2012 19:59:47,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=settings&_action=edit-prefs&_section=server&_framed=1)
[23-Aug-2012 19:59:48,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=settings&_action=edit-prefs&_section=general&_framed=1)
[23-Aug-2012 20:03:31,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=mail&_mbox=INBOX)
[23-Aug-2012 20:03:31,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET /roundcubemail/?_task=mail&_mbox=INBOX)
[23-Aug-2012 20:03:40,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=INBOX&_action=list&_remote=1&_unlock=loading1345752001540&_=1345752001541)
[23-Aug-2012 20:03:40,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=INBOX&_action=list&_remote=1&_unlock=loading1345752001540&_=1345752001541)
[23-Aug-2012 20:03:40,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_action=getunread&_remote=1&_unlock=0&_=1345752001542)
[23-Aug-2012 20:03:44,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=settings)
[23-Aug-2012 20:03:47,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=settings&_action=edit-prefs&_section=general&_framed=1)
[23-Aug-2012 20:03:52,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=mail&_mbox=INBOX)
[23-Aug-2012 20:03:52,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET /roundcubemail/?_task=mail&_mbox=INBOX)
[23-Aug-2012 20:03:53,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=INBOX&_action=list&_remote=1&_unlock=loading1345752014971&_=1345752014972)
[23-Aug-2012 20:03:53,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=INBOX&_action=list&_remote=1&_unlock=loading1345752014971&_=1345752014972)
[23-Aug-2012 20:03:53,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_action=getunread&_remote=1&_unlock=0&_=1345752014973)
[23-Aug-2012 20:03:59,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=logout)
[23-Aug-2012 20:09:33,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (POST /roundcubemail/?_task=login&_action=login)
[23-Aug-2012 20:09:34,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=mail)
[23-Aug-2012 20:09:34,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET /roundcubemail/?_task=mail)
[23-Aug-2012 20:09:35,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=Contacts&_action=list&_remote=1&_unlock=loading1345752356375&_=1345752356380)
[23-Aug-2012 20:09:35,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=Contacts&_action=list&_remote=1&_unlock=loading1345752356375&_=1345752356380)
[23-Aug-2012 20:09:35,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_action=getunread&_remote=1&_unlock=0&_=1345752356382)
[23-Aug-2012 20:09:39,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=settings)
[23-Aug-2012 20:09:42,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=settings&_action=edit-prefs&_section=general&_framed=1)
[23-Aug-2012 20:09:49,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (POST /roundcubemail/?_task=settings&_action=save-prefs)
[23-Aug-2012 20:09:50,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=settings)
[23-Aug-2012 20:09:53,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=mail&_mbox=INBOX)
[23-Aug-2012 20:09:53,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET /roundcubemail/?_task=mail&_mbox=INBOX)
[23-Aug-2012 20:09:54,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=INBOX&_action=list&_remote=1&_unlock=loading1345752374935&_=1345752374940)
[23-Aug-2012 20:09:54,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_action=getunread&_remote=1&_unlock=0&_=1345752374942)
[23-Aug-2012 20:09:54,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=INBOX&_action=list&_remote=1&_unlock=loading1345752374935&_=1345752374940)
[23-Aug-2012 20:09:58,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=addressbook)
[23-Aug-2012 20:09:59,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=addressbook&_source=Contacts&_action=list&_remote=1&_unlock=loading1345752380052&_=1345752380057)
[23-Aug-2012 20:10:01,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=addressbook&_source=global&_page=1&_action=list&_remote=1&_unlock=loading1345752382731&_=1345752382735)
[23-Aug-2012 20:10:03,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=addressbook&_source=Contacts&_page=1&_action=list&_remote=1&_unlock=loading1345752384814&_=1345752384817)
[23-Aug-2012 20:10:06,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=mail&_mbox=INBOX)
[23-Aug-2012 20:10:06,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET /roundcubemail/?_task=mail&_mbox=INBOX)
[23-Aug-2012 20:10:07,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=INBOX&_action=list&_remote=1&_unlock=loading1345752388265&_=1345752388270)
[23-Aug-2012 20:10:07,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_action=getunread&_remote=1&_unlock=0&_=1345752388272)
[23-Aug-2012 20:10:07,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=INBOX&_action=list&_remote=1&_unlock=loading1345752388265&_=1345752388270)
[23-Aug-2012 20:10:08,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=logout)
[23-Aug-2012 20:10:21,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (POST /roundcubemail/?_task=login&_action=login)
[23-Aug-2012 20:10:21,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET /roundcubemail/?_task=mail)
[23-Aug-2012 20:10:21,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET /roundcubemail/?_task=mail)
[23-Aug-2012 20:10:22,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=Contacts&_action=list&_remote=1&_unlock=loading1345752403534&_=1345752403539)
[23-Aug-2012 20:10:22,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_action=getunread&_remote=1&_unlock=0&_=1345752403541)
[23-Aug-2012 20:10:22,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=Contacts&_action=list&_remote=1&_unlock=loading1345752403534&_=1345752403539)
[23-Aug-2012 20:10:26,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=INBOX&_page=1&_action=list&_remote=1&_unlock=loading1345752407396&_=1345752407399)
[23-Aug-2012 20:10:26,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=INBOX&_page=1&_action=list&_remote=1&_unlock=loading1345752407396&_=1345752407399)
[23-Aug-2012 20:10:28,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=event.default&_page=1&_action=list&_remote=1&_unlock=loading1345752409502&_=1345752409504)
[23-Aug-2012 20:10:28,000000 +0000]: PHP Error: Deprecated hook name.
imap_init -> storage_init in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
233 (GET
/roundcubemail/?_task=mail&_refresh=1&_mbox=event.default&_page=1&_action=list&_remote=1&_unlock=loading1345752409502&_=1345752409504)
[23-Aug-2012 20:15:22,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_mbox=event.default&_list=1&_quota=1&_action=check-recent&_remote=1&_unlock=0&_=1345752703549)
[23-Aug-2012 20:20:22,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_mbox=event.default&_list=1&_quota=1&_action=check-recent&_remote=1&_unlock=0&_=1345753003553)
[23-Aug-2012 20:25:22,000000 +0000]: PHP Error: Failed to load plugin
file /usr/share/roundcubemail/plugins/kolab_core/kolab_core.php in
/usr/share/roundcubemail/program/include/rcube_plugin_api.php on line
214 (GET
/roundcubemail/?_task=mail&_mbox=event.default&_list=1&_quota=1&_action=check-recent&_remote=1&_unlock=0&_=1345753303556)

Best regards,
Dirk