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`='fb6bb2e20cdf04f24d30fff50d3243fc',`time`=1711708906,`ip`=X'12cc2a59',`location`='/printthread.php?tid=656',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0