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 ('f47e5ede58b76982162c81c5430c02b0','0','3.147.104.120','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715330275','board.php?boardid=139&sid=7de312367cf2805e9844a4ac59b70848','0','0','')
mysql error: Duplicate entry 'f47e5ede58b76982162c81c5430c02b0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 10:37
Script: /board.php?boardid=139&sid=7de312367cf2805e9844a4ac59b70848
Referer: http://wehrbauten.de/board.php?boardid=139&sid=7de312367cf2805e9844a4ac59b70848