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`='76503c80030f7975c98f6565c75f7a26',`time`=1711635971,`ip`=X'36905115',`location`='/newreply.php?tid=224&replyto=4907',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0