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`='602ac20533736a7e3468b6895890bf6c',`time`=1711615023,`ip`=X'36a6dfcc',`location`='/newreply.php?tid=15&replyto=4592',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0