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`='868f342d669fc05c5d9cbd03f109e1ad',`time`=1711649774,`ip`=X'12d1d1f6',`location`='/newreply.php?tid=661&replyto=5441',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0