Looking at error log, you might found this error code – mysql error 144 table.

1st, navigate to /var/lib/mysql/<database>

For MyISAM repair command:

myisamchk -r <table_name>

if above does not work, use this command

myisamchk -r -v -f ./<table name>

For InnoDB :

A bit more complicated and not tested yet, so will update this post later.

Reference :

1. https://www.a2hosting.com/kb/developer-corner/mysql/repairing-mysql-databases-and-tables
2. http://stackoverflow.com/questions/8843776/mysql-table-is-marked-as-crashed-and-last-automatic-repair-failed