MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
126 - Incorrect key file for table './forumMyBB/mybb_sessions.MYI'; try to repair it
Query:
REPLACE INTO mybb_sessions SET `uid`='0',`sid`='7f6a16715181e0752a59c6b7cb6c5896',`time`='1711641043',`ip`='35.175.172.94',`location`='/calendar.php?action=dayview&calendar=1&year=2020&month=8&day=12',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'