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 ('d05a8b455f64ad9e1e2033c2fb2fb8fa','0','18.220.1.239','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714995955','index.php?sid=98fc5a2f9e50af306fd4d483c3df4554','0','0','')
mysql error: Duplicate entry 'd05a8b455f64ad9e1e2033c2fb2fb8fa' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 13:45
Script: /index.php?sid=98fc5a2f9e50af306fd4d483c3df4554
Referer: http://wehrbauten.de/index.php?sid=98fc5a2f9e50af306fd4d483c3df4554