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`='63afcdfc4840da209f2c82259988476f',`time`=1711615760,`ip`=X'12ea8b95',`location`='/memberlist.php?action=search',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0