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`='a5474ec4b3dd3577194eeec5ada776d2',`time`=1711696381,`ip`=X'2cd278b6',`location`='/newreply.php?tid=332&replyto=764',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0