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 ('dd5473683010ad241c6624c0532da813','0','3.15.139.249','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745064255','addreply.php?postid=10760','0','0','')
mysql error: Duplicate entry 'dd5473683010ad241c6624c0532da813' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 19.04.2025 @ 14:04
Script: /addreply.php?postid=10760
Referer: http://gttempel.de/addreply.php?postid=10760