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`='3e98f47749eff63b0866e6dc750523cc',`time`=1711666600,`ip`=X'36929af3',`location`='/misc.php?action=whoposted&tid=15&sort=username',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0