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`='6d8926a6d577f446de7842229bc80305',`time`=1711632278,`ip`=X'2cc84d3b',`location`='/showthread.php?mode=threaded&tid=258&pid=1627',`useragent`='claudebot',`location1`=8,`location2`=258,`nopermission`=0