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 ('cacde82c4ffc108acc43004eaed16b7c','0','3.144.250.223','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715438146','board.php?boardid=461&sid=de8a626ddc33cc6d0171f8aa2e35789e','0','0','')
mysql error: Duplicate entry 'cacde82c4ffc108acc43004eaed16b7c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 16:35
Script: /board.php?boardid=461&sid=de8a626ddc33cc6d0171f8aa2e35789e
Referer: http://wehrbauten.de/board.php?boardid=461&sid=de8a626ddc33cc6d0171f8aa2e35789e