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`='c253fd16037b6c0f7a22acd84d02e220',`time`=1711644437,`ip`=X'36512177',`location`='/misc.php?action=whoposted&tid=12',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0