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 ('9dc2da2ed6c60b7741316791433778f0','0','216.73.216.94','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1751748403','addreply.php?postid=8235','0','0','')
mysql error: Duplicate entry '9dc2da2ed6c60b7741316791433778f0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 05.07.2025 @ 22:46
Script: /addreply.php?postid=8235
Referer: