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 ('e12bf6db9f994b17f1a24f4b964aef5e','0','216.73.216.108','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1749239223','attachment.php?attachmentid=8189','0','0','')
mysql error: Duplicate entry 'e12bf6db9f994b17f1a24f4b964aef5e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 06.06.2025 @ 21:47
Script: /attachment.php?attachmentid=8189
Referer: