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 ('1d973477bc259e0729d2afaaa749d906','0','3.129.249.105','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714931963','board.php?boardid=122&sid=a1cf5f509e4f755f0b2aa3751a12c531','0','0','')
mysql error: Duplicate entry '1d973477bc259e0729d2afaaa749d906' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 05.05.2024 @ 19:59
Script: /board.php?boardid=122&sid=a1cf5f509e4f755f0b2aa3751a12c531
Referer: http://wehrbauten.de/board.php?boardid=122&sid=a1cf5f509e4f755f0b2aa3751a12c531