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`='598903c9ad8cbcfa3b9e98d9d8e21709',`time`=1711723197,`ip`=X'36c6920d',`location`='/showthread.php?tid=235',`useragent`='claudebot',`location1`=9,`location2`=235,`nopermission`=0