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`='0045d6017f6e4f39a3077a2e5965e48e',`time`=1711671796,`ip`=X'34cd9f30',`location`='/newreply.php?tid=237&replyto=4250',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0