I have a problem with MySQL

• Table X is marked as crashed and should be repaired
• MySQL permission problem. Contact Kolmisoft to solve it.
• MySQL user creating and allow connecting from custom IP.
• PhpMyAdmin does not work after changing MySQL root password
• Wrong permissions on configuration file, should not be world writable!
• Master-Slave replication is broken because of corrupted slave relay log on Slave server
• Mysql2::Error: Duplicate entry '2147483647' for key