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`='d696bc256964d837e66e6560ee61a3c1',`time`=1711672538,`ip`=X'03eab177',`location`='/newreply.php?tid=275&replyto=708',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0