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`='a8ba3f59cd86df4ae3fbabecd61160fd',`time`=1711711461,`ip`=X'22e7f7fe',`location`='/showthread.php?tid=306&pid=2171',`useragent`='claudebot',`location1`=8,`location2`=306,`nopermission`=0