SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('c728b9f65fc259948b73ae282297751b','0','3.129.217.86','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715976038','addreply.php?postid=19239','0','0','')
mysql error: Duplicate entry 'c728b9f65fc259948b73ae282297751b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 17.05.2024 @ 22:00
Script: /addreply.php?postid=19239
Referer: