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`='12679ef0158c37c8dede3b0f6f749526',`time`=1711714176,`ip`=X'22e53e2d',`location`='/showthread.php?tid=403&action=newpost',`useragent`='claudebot',`location1`=8,`location2`=403,`nopermission`=0