SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb2_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('bcdc0a09ccca91b6ec9e462a3585cf16','0','18.221.187.121','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714117957','forgotpw.php?sid=37671ec4422fc872b42d6d135e3cede2','0','0','')
mysql error: Duplicate entry 'bcdc0a09ccca91b6ec9e462a3585cf16' for key 1
mysql error number: 1062
mysql version: 4.1.22-standard
php version: 5.3.29-1+hw8
Date: 26.04.2024 @ 03:52
Script: /wbb2/forgotpw.php?sid=37671ec4422fc872b42d6d135e3cede2
Referer: