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`='180c2d0a7bb0b9ef99ad67c90208743f',`time`=1711712107,`ip`=X'36c4f85d',`location`='/showthread.php?tid=288&pid=1779',`useragent`='claudebot',`location1`=8,`location2`=288,`nopermission`=0