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 ('35fe6798ddf7307f03f665b59e101fba','0','18.188.29.73','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715272859','search.php?action=user&userid=94&sid=5f8c181b9b76e61e0147332c02803e46','0','0','')
mysql error: Duplicate entry '35fe6798ddf7307f03f665b59e101fba' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 18:40
Script: /search.php?action=user&userid=94&sid=5f8c181b9b76e61e0147332c02803e46
Referer: http://wehrbauten.de/search.php?action=user&userid=94&sid=5f8c181b9b76e61e0147332c02803e46