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`='f281a8f9e47bb78487683fe4f33ae7f2',`time`=1711691966,`ip`=X'23999c6c',`location`='/showthread.php?mode=threaded&tid=584&pid=4570',`useragent`='claudebot',`location1`=6,`location2`=584,`nopermission`=0