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`='c6314cb95c09f59b5e004a52b0359e60',`time`=1711634386,`ip`=X'2cdc835d',`location`='/newreply.php?tid=254&replyto=1584',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0