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 ('18d86c009a4997b2ef87402b63cd3b48','0','18.216.202.61','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745246249','addreply.php?threadid=1224','0','0','')
mysql error: Duplicate entry '18d86c009a4997b2ef87402b63cd3b48' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 21.04.2025 @ 16:37
Script: /addreply.php?threadid=1224
Referer: http://gttempel.de/addreply.php?threadid=1224