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`='e020492e1832f0d57d2ad5617dd20344',`time`=1711668504,`ip`=X'03eb8b7a',`location`='/showthread.php?tid=594&action=newpost',`useragent`='claudebot',`location1`=6,`location2`=594,`nopermission`=0