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 ('45c1e9506441036dc874a0cfb3722f53','0','216.73.216.21','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1756297344','addreply.php?postid=25710','0','0','')
mysql error: Duplicate entry '45c1e9506441036dc874a0cfb3722f53' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 27.08.2025 @ 14:22
Script: /addreply.php?postid=25710
Referer: