I have CENTOS 6.6 x86_64 with WHM 11.48.1 (build 2) , cpanel and roundcube.
Inside the errors file into /var/cpanel/roundcube/log I see:
[03-Mar-2015 17:09:37 +0100]: DB Error: [2006] MySQL server has gone away (SQL Query: SELECT vars, ip, changed, now() AS ts FROM session WHERE sess_id = 'ibing0r37k0lbcpsl3vdpqmgg1') in /usr/local/cpanel/base/3rdparty/roundcube/program/lib/Roundcube/rcube_db.php on line 467 (POST /cpsess9128948478/3rdparty/roundcube/index.php?_task=mail&_action=refresh?_task=&_action=)
[03-Mar-2015 17:09:37 +0100]: DB Error: [2006] MySQL server has gone away (SQL Query: INSERT INTO session (sess_id, vars, ip, created, changed) VALUES ('ibing0r37k0lbcpsl3vdpqmgg1', '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', '78.5.12.134', now(), now())) in /usr/local/cpanel/base/3rdparty/roundcube/program/lib/Roundcube/rcube_db.php on line 467 (POST /cpsess9128948478/3rdparty/roundcube/index.php?_task=mail&_action=refresh?_task=&_action=)
Anyone can help me please?
