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`='e9f34690c8a87cb52ef358de06ff035a',`time`=1711701615,`ip`=X'2cdf27c7',`location`='/misc.php?action=whoposted&tid=271',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0