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`='c9f731599120d87719eefb83de27975f',`time`=1711696436,`ip`=X'36af3bf2',`location`='/showthread.php?tid=42&pid=59',`useragent`='claudebot',`location1`=7,`location2`=42,`nopermission`=0