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 ('aedaf64d5f094e3f370b3ff1a875afd6','0','216.73.216.21','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1756301793','addreply.php?action=quote&postid=21247','0','0','')
mysql error: Duplicate entry 'aedaf64d5f094e3f370b3ff1a875afd6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 27.08.2025 @ 15:36
Script: /addreply.php?action=quote&postid=21247
Referer: