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`='3f56047427ef9cb96a73dd1fbe2d3f8b',`time`=1711658579,`ip`=X'22e644d6',`location`='/memberlist.php?username_match=begins&username=F',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0