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`='a3c729815f73e38db2dcd833de099884',`time`=1711700283,`ip`=X'2cc85f9d',`location`='/newreply.php?tid=237&replyto=1390',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0