SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.5): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('1ad1ef2a43fd6d62cf540d96cf09da59','0','18.188.148.71','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715886673','profile.php?userid=84525&sid=e40615b4de4e75f513100c9c1077396c','0','0','')
mysql error: Duplicate entry '1ad1ef2a43fd6d62cf540d96cf09da59' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42
php version: 5.2.17
Date: 16.05.2024 @ 21:11
Script: /wbb2/profile.php?userid=84525&sid=e40615b4de4e75f513100c9c1077396c
Referer: