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`='73ec840218c9fc77b036c142c5ca8001',`time`=1711688774,`ip`=X'36910c1c',`location`='/memberlist.php?perpage=20&username_match=begins&username=U&sort=referrals&order=descending',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0