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`='fde04e72fa5dbb9fbf7d1898676f40a6',`time`=1711648751,`ip`=X'2ccab776',`location`='/showthread.php?mode=linear&tid=244&pid=1468',`useragent`='claudebot',`location1`=8,`location2`=244,`nopermission`=0