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`='76d93a416e4ee1bccca2f61bb89a3850',`time`=1711631454,`ip`=X'2cde9272',`location`='/misc.php?action=whoposted&tid=49',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0