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`='adb7c1941438b22faf6bc4cf3a8d4d5d',`time`=1711652120,`ip`=X'2cd37565',`location`='/newreply.php?tid=318&replyto=558',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0