Kolab version where it is not a must to be an email server developer?

[Rick]

Sorry I did not realize I had 3.0 installed for testing. 
installed 3.3 fresh OS image
I added ~
> /etc/kolab/kolab.conf:
> to section [kolab_wap], I added:
> api_url = http://localhost/kolab-webadmin/api
> 
> and file /etc/roundcubemail/config.inc.php I added:
> $config['file_api_url'] = 'http://localhost/chwala/api/';

Which allows me to access chwala @ domain/chwala
However I cannot upload files from /chwala
Nor can Any images ect be saved to directory from roundcube

No error logs I can see

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