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`='bfff587ad25b6e9da41301b23d609f51',`time`=1711653142,`ip`=X'22ccb194',`location`='/memberlist.php?username_match=begins&username=W',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0