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`='c986b7a89c4a9b1e98128f03a8841547',`time`=1711689117,`ip`=X'03ed208f',`location`='/memberlist.php?perpage=20&username_match=begins&username=G&sort=username&order=ascending',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0