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`='90d1f66754c7ec6d3056a344c2fcb7d0',`time`=1711616560,`ip`=X'12d466ae',`location`='/ratethread.php?tid=262&rating=2&my_post_key=b8165056a192648d4c916dd34f44316d',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0