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`='0347515087ee584bdb63bb0d937e7066',`time`=1711648171,`ip`=X'035938e4',`location`='/showthread.php?mode=threaded&tid=318&pid=934',`useragent`='claudebot',`location1`=8,`location2`=318,`nopermission`=0