MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
126 - Incorrect key file for table './wforum/sessions.MYI'; try to repair it
Query:
REPLACE INTO sessions SET `uid`='0',`sid`='a1c08cbc536d37eb51aac265cffac125',`time`='1736378706',`ip`='3.14.131.240',`location`='/showthread.php?pid=31449&tid=1066',`useragent`='Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c',`location1`='137',`location2`='1066',`nopermission`='0'