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`='f46ca2f965205e33677024e4b04140ef',`time`=1711618948,`ip`=X'03ebe324',`location`='/newreply.php?tid=25&replyto=2655',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0