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 ('a9b939c9b32573e82fb078332194d96a','0','18.224.45.80','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745168247','addreply.php?postid=3739','0','0','')
mysql error: Duplicate entry 'a9b939c9b32573e82fb078332194d96a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 20.04.2025 @ 18:57
Script: /addreply.php?postid=3739
Referer: http://gttempel.de/addreply.php?postid=3739