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`='66a521a7f4dcacff83412dc99184157b',`time`=1711692557,`ip`=X'36937b9f',`location`='/showthread.php?mode=threaded&tid=263&pid=1656',`useragent`='claudebot',`location1`=8,`location2`=263,`nopermission`=0