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`='fdcff65584c6c85d168ab5a661267952',`time`=1711622998,`ip`=X'2cdc835d',`location`='/showthread.php?tid=313&pid=2719',`useragent`='claudebot',`location1`=8,`location2`=313,`nopermission`=0