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 ('20f83028838fad6b9c46213c58513eba','0','3.138.113.188','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715149045','profile.php?userid=612&sid=67e8cda21f77d2888c07f84098dc80ea','0','0','')
mysql error: Duplicate entry '20f83028838fad6b9c46213c58513eba' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 08.05.2024 @ 08:17
Script: /profile.php?userid=612&sid=67e8cda21f77d2888c07f84098dc80ea
Referer: http://wehrbauten.de/profile.php?userid=612&sid=67e8cda21f77d2888c07f84098dc80ea