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 ('8399134494b3153071216ebc9925e641','0','3.17.203.68','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715054948','thread.php?goto=nextnewest&threadid=2205','0','0','')
mysql error: Duplicate entry '8399134494b3153071216ebc9925e641' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 07.05.2024 @ 06:09
Script: /thread.php?goto=nextnewest&threadid=2205
Referer: