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`='d75d5b400b048443f508f33e0714ce27',`time`=1711629527,`ip`=X'641a236f',`location`='/newreply.php?tid=295&replyto=1813',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0