Database select error its my problem and when I restart my mysql to fix this error this problem solve but after 30 minutes or after hours again this error happen again.
I put link here screenshot from ssh [putty] of errors what should i do? for what reason this happen?![enter image description here]
tail -f /var/log/mysqld.log 120813 17:33:57 InnoDB: Completed initialization of buffer pool 120813 17:33:57 InnoDB: highest supported file format is Barracuda. 120813 17:33:57 InnoDB: Waiting for the background threads to start 120813 17:33:58 InnoDB: 1.1.8 started; log sequence number 63473783633 120813 17:33:58 [ERROR] Column count of mysql.db is wrong. Expected 22, found 20. Created with MySQL 50092, now running 50516. Please use mysql_upgrade to fix this error. 120813 17:33:58 [ERROR] mysql.user has no `Event_priv` column at position 29 120813 17:33:58 [ERROR] Event Scheduler: An error occurred when initializing system tables. Disabling the Event Scheduler. 120813 17:33:58 [Note] /usr/libexec/mysqld: ready for connections. Version: '5.5.16' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Server (GPL) by Remi