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`='94eacc0a243af6a36af3f07971c31f15',`time`=1711691968,`ip`=X'36ea2d21',`location`='/showthread.php?mode=linear&tid=318&pid=558',`useragent`='claudebot',`location1`=8,`location2`=318,`nopermission`=0