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 ('78eec11c6fa70dd7e3d842ae1df7131c','0','3.145.143.239','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714344116','search.php?action=user&userid=1&sid=f6a1f07c8e6a76d9db91e6d0c6d29575','0','0','')
mysql error: Duplicate entry '78eec11c6fa70dd7e3d842ae1df7131c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 29.04.2024 @ 00:41
Script: /search.php?action=user&userid=1&sid=f6a1f07c8e6a76d9db91e6d0c6d29575
Referer: http://wehrbauten.de/search.php?action=user&userid=1&sid=f6a1f07c8e6a76d9db91e6d0c6d29575