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 ('9895f90c518ba064fa2adc00ebcff274','0','3.145.166.167','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715839437','thread.php?threadid=1409&hilight=&hilightuser=0&page=1&sid=32c81b317e0d0613a4d654c51264115f','0','0','')
mysql error: Duplicate entry '9895f90c518ba064fa2adc00ebcff274' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 16.05.2024 @ 08:03
Script: /thread.php?threadid=1409&hilight=&hilightuser=0&page=1&sid=32c81b317e0d0613a4d654c51264115f
Referer: http://wehrbauten.de/thread.php?threadid=1409&hilight=&hilightuser=0&page=1&sid=32c81b317e0d0613a4d654c51264115f