SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('af3835b9bcaeded8bbffa639e040166f','0','3.144.124.232','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715326939','addreply.php?action=quote&postid=11670&sid=e74b0befa59c5b5ae69443e6d678cf1b','0','0','')
mysql error: Duplicate entry 'af3835b9bcaeded8bbffa639e040166f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 09:42
Script: /addreply.php?action=quote&postid=11670&sid=e74b0befa59c5b5ae69443e6d678cf1b
Referer: http://wehrbauten.de/addreply.php?action=quote&postid=11670&sid=e74b0befa59c5b5ae69443e6d678cf1b