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`='e54dc6014e6eae582dd2571e22d8b319',`time`=1711722036,`ip`=X'22e428d4',`location`='/showthread.php?tid=411',`useragent`='claudebot',`location1`=20,`location2`=411,`nopermission`=0