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 ('a734aa793cf0ef3be305d31a866197e6','0','216.73.216.128','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1754595577','thread.php?goto=nextoldest&threadid=6497','0','0','')
mysql error: Duplicate entry 'a734aa793cf0ef3be305d31a866197e6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.1.41
php version: 5.3.1
Date: 07.08.2025 @ 21:39
Script: /plauscherl/thread.php?goto=nextoldest&threadid=6497
Referer: