What is the host service you are using? root or reseller hosting..
host of the web address from the control panel
phpmyadmin , select the repair database tables.
If you enter the following command from the ssh server authority.
Code:
mysqlcheck -u root -p --auto-repair --check --optimize --all-databases
and last.. mysql root password enter...
Code:
service mysql stop
service mysql start
I hope that is helpful