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`='4c630a444c479acd238cfdd1a4cac757',`time`=1711644410,`ip`=X'36e05a19',`location`='/newreply.php?tid=411&replyto=2808',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0