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`='e88b1af5b5b077bf89139a1891ff25f0',`time`=1711640815,`ip`=X'12eae8e4',`location`='/showthread.php?tid=6708&action=lastpost',`useragent`='claudebot',`location1`=5,`location2`=6708,`nopermission`=0