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`='812aeddc04920fa6d6101fae74444774',`time`=1711648604,`ip`=X'03ed5b62',`location`='/showthread.php?tid=51',`useragent`='claudebot',`location1`=6,`location2`=51,`nopermission`=0