Also checking better the debug.log, i see the NAME and FULL PASSWORD of the database of the site. In the stack trace.
#0 /home/oc-includes/osclass/classes/database/DBConnectionClass.php(272): DBConnectionClass->_connectToDb('localhost', 'fulledbname...'passwordhere', NULL)
I can't believe my eyes this is happening. The password revealed in a public log file (if you know where to look).