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`='73b2aeaf126ac6ee4ea5d375c09c79d1',`time`=1711655885,`ip`=X'12e8a96e',`location`='/newreply.php?tid=232&replyto=2097',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0