SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('dfed96aeb3b7a4638031e1e37b834b04','0','18.222.37.169','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714224820','index.php','0','0','')
mysql error: Duplicate entry 'dfed96aeb3b7a4638031e1e37b834b04' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.5.62-0+deb8u1
php version: 5.6.40-0+deb8u12
Date: 27.04.2024 @ 15:33
Script: /archive/index.php
Referer: https://www.matheboard.de/archive/581920/archive/599092/thread.html