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 ('79c4e7b5dc8d492589ee8f935a418301','0','18.191.44.23','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714421525','index.php','0','0','')
mysql error: Duplicate entry '79c4e7b5dc8d492589ee8f935a418301' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.5.62-0+deb8u1
php version: 5.6.40-0+deb8u12
Date: 29.04.2024 @ 22:12
Script: /archive/index.php
Referer: https://www.matheboard.de/archive/531516/archive/531516/1/thread.html