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`='7c5125d628afb65d7ee1a3ced7d96508',`time`=1711718607,`ip`=X'3693115f',`location`='/showthread.php?tid=237&pid=1390',`useragent`='claudebot',`location1`=9,`location2`=237,`nopermission`=0