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 ('796f396c46b32e3d13f267d2d68ae41a','0','52.14.168.56','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714870481','jgs_portal_box.php?id=28&sid=42bf5516e72a5dfeac3081a2f6fbadf0','0','0','')
mysql error: Duplicate entry '796f396c46b32e3d13f267d2d68ae41a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 05.05.2024 @ 02:54
Script: /jgs_portal_box.php?id=28&sid=42bf5516e72a5dfeac3081a2f6fbadf0
Referer: http://wehrbauten.de/jgs_portal_box.php?id=28&sid=42bf5516e72a5dfeac3081a2f6fbadf0