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`='44f874eb0f889ecb7f63263cf185b1da',`time`=1711703639,`ip`=X'22e5975d',`location`='/newreply.php?tid=299&replyto=1833',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0