MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
145 - Table './balkania_forum/mybb_sessions' is marked as crashed and should be repaired
Query:
REPLACE INTO mybb_sessions SET `uid`=0,`sid`='7106d457cf0d5a0911f366dc3dbd2c09',`time`=1711621516,`ip`=X'03eec351',`location`='/newreply.php?tid=25&replyto=1534',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0