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 ('b7f47dde4dbf61dbe48cc629260a09f0','0','3.137.187.233','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714926129','usercp.php?action=buddy&add=1850','0','0','')
mysql error: Duplicate entry 'b7f47dde4dbf61dbe48cc629260a09f0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 05.05.2024 @ 18:22
Script: /usercp.php?action=buddy&add=1850
Referer: http://www.granturismotempel.de/usercp.php?action=buddy&add=1850