*Hi, For a few days, I have two errors in system logs.* *the first* /DBD::mysql::st execute failed: Lost connection to MySQL server during query at /opt/otrs/Kernel/System/DB.pm line 559. ERROR: OTRS-UnlockTickets-10 Perl: 5.8.8 OS: linux Time: Thu Jun 9 06:15:15 2016 Message: Lost connection to MySQL server during query, SQL: 'SELECT st.tn, st.ticket_answered, st.id, st.timeout, sq.unlock_timeout FROM ticket st, queue sq WHERE st.queue_id = sq.id AND st.ticket_answered != 1 AND sq.unlock_timeout != 0 AND st.ticket_state_id IN ( 1, 4 ) AND st.ticket_lock_id NOT IN ( 1, 3 ) ' Traceback (18034): Module: /opt/otrs//bin/UnlockTickets.pl (v1.33) Line: 125 DBD::mysql::st fetchrow_array failed: fetch() without execute() at /opt/otrs/Kernel/System/DB.pm line 622. / *the second* /Charset encode 'gb2312' -=> 'utf-8' (¥«¥ë¥È¥»¥¸¥å£¥ë¸üРºÏ¤») not supported!/ *I don't know if this errors are related and I don't know what I can do for this If somebody can help me Thanks Regards, Claude * * *