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 ('7297bef427e5d13aaa6c1208d6eafeca','0','3.139.97.157','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715298033','register.php?sid=db6fdacff772ea282198e33f9745658c','0','0','')
mysql error: Duplicate entry '7297bef427e5d13aaa6c1208d6eafeca' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 01:40
Script: /register.php?sid=db6fdacff772ea282198e33f9745658c
Referer: http://wehrbauten.de/register.php?sid=db6fdacff772ea282198e33f9745658c