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 ('59a9e67fabe9f80268de19b3d1bf0b76','0','18.118.164.151','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714268331','jgs_portal.php?sid=b1d4d4a4e00dc9a4f5179e8a0d7b9850','0','0','')
mysql error: Duplicate entry '59a9e67fabe9f80268de19b3d1bf0b76' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 28.04.2024 @ 03:38
Script: /jgs_portal.php?sid=b1d4d4a4e00dc9a4f5179e8a0d7b9850
Referer: http://wehrbauten.de/jgs_portal.php?sid=b1d4d4a4e00dc9a4f5179e8a0d7b9850