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 ('91e0eca721ac93a2d0297501dc4841df','0','216.73.216.19','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1756747532','attachment.php?attachmentid=10319','0','0','')
mysql error: Duplicate entry '91e0eca721ac93a2d0297501dc4841df' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 01.09.2025 @ 19:25
Script: /attachment.php?attachmentid=10319
Referer: