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`='1139fa77c9b3962234c72969cf8d1942',`time`=1711713438,`ip`=X'22c90890',`location`='/newreply.php?tid=178&replyto=1036',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0