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 ('40603904ec7a617e52da2686778b66c6','0','18.221.15.15','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715304633','profile.php?userid=703&sid=cecebd58ec2827c012797af7d82b6774','0','0','')
mysql error: Duplicate entry '40603904ec7a617e52da2686778b66c6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 03:30
Script: /profile.php?userid=703&sid=cecebd58ec2827c012797af7d82b6774
Referer: http://wehrbauten.de/profile.php?userid=703&sid=cecebd58ec2827c012797af7d82b6774