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`='43de54f8125f9139de62feefd915d699',`time`='1711692796',`ip`='3.236.101.52',`location`='/calendar.php?action=dayview&calendar=1&year=2020&month=2&day=6',`useragent`='claudebot',`location1`='0',`location2`='0',`nopermission`='0'