I am not sure, but I think the shown fatal error comes up with the unsuccessfull try to synxc Outlook 2013 with esync:
[19-Jun-2014 13:17:20 Europe/Berlin] PHP Fatal error: Call to a member function getDisposition() on a non-object in /data1/htdocs/egroupware/emailadmin/inc/class.emailadmin_imapbase.inc.php on line 5009
Christoph