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`='59ffd97db9c3ab9579e54d51ecc80122',`time`=1711616189,`ip`=X'12ea379a',`location`='/newreply.php?tid=262&replyto=695',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0