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`='ccd7eaa71b5b35c0f8b11c5287863ba0',`time`=1711707535,`ip`=X'12e87141',`location`='/showthread.php?tid=605',`useragent`='claudebot',`location1`=5,`location2`=605,`nopermission`=0