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`='a76a045c2df266cd4c2d4d1677267ef4',`time`=1711701559,`ip`=X'03ef9538',`location`='/showthread.php?mode=linear&tid=337&pid=952',`useragent`='claudebot',`location1`=8,`location2`=337,`nopermission`=0