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`='780d30f4551e977383b3d9b0a3e75c68',`time`=1711707851,`ip`=X'22cc63fe',`location`='/showthread.php?tid=391',`useragent`='claudebot',`location1`=9,`location2`=391,`nopermission`=0