errors shown in Roundcubemail.

[Thomas Spuhler]

I see the following erros in Roundcubemail.
Any hint's to fix them? I am using chwala-0.2
PHP Error in /usr/share/pear/HTTP/Request2.php (915): HTTP_Request2 needs an 
absolute HTTP(S) request URL, '/chwala//api/?method=authenticate' given
Deprecated: Non-static method PEAR::isError() should not be called statically, 
assuming $this from incompatible context in 
/usr/share/roundcubemail/plugins/kolab_addressbook/kolab_addressbook.php on 
line 230 Deprecated: Non-static method PEAR::isError() should not be called 
statically, assuming $this from incompatible context in 
/usr/share/roundcubemail/plugins/kolab_addressbook/lib/rcube_kolab_contacts.php 
on line 123 

-- 
Best regards
Thomas Spuhler

All of my e-mails have a valid digital signature
ID 60114E63
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 181 bytes
Desc: This is a digitally signed message part.
URL: <http://lists.kolab.org/pipermail/users/attachments/20150819/d5f25191/attachment.sig>