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`='6fba600dcae3b4f6b1a4d1c8b88c3bd1',`time`=1711700698,`ip`=X'12eacaca',`location`='/misc.php?action=whoposted&tid=354',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0