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`='5cf993b2c2f11aff8a208893d35aae98',`time`=1711711054,`ip`=X'03ed1f83',`location`='/showthread.php?tid=251&action=lastpost',`useragent`='claudebot',`location1`=8,`location2`=251,`nopermission`=0