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 ('0f12a8b016edc09ce8479702858d8841','0','3.141.41.187','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715228417','jgs_portal_links.php','0','0','')
mysql error: Duplicate entry '0f12a8b016edc09ce8479702858d8841' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 06:20
Script: /jgs_portal_links.php
Referer: http://www.wehrbauten.de/board.php?boardid=201&sid=2ccd926a8d68d5e6293091727a5f9108