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`='27acecc42a1ace7eaccbfaf3e162a250',`time`=1711637375,`ip`=X'34cd9f30',`location`='/newreply.php?tid=277&replyto=1722',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0