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`='51b5cb351531bff4fb1177e669e246b0',`time`='1736381004',`ip`='18.119.116.125',`location`='/showthread.php?pid=39939&tid=999',`useragent`='Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c',`location1`='153',`location2`='999',`nopermission`='0'