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 ('1a41b7469596ceb5ace5f976d069224c','0','3.144.202.167','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714763376','board.php?boardid=484&sid=27a2d73e07cb9c9345a2b57475ac6351','0','0','')
mysql error: Duplicate entry '1a41b7469596ceb5ace5f976d069224c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 21:09
Script: /board.php?boardid=484&sid=27a2d73e07cb9c9345a2b57475ac6351
Referer: http://wehrbauten.de/board.php?boardid=484&sid=27a2d73e07cb9c9345a2b57475ac6351