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 ('021ca24659b37be830384e998982ff07','0','3.138.204.208','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714996510','board.php?boardid=160&sid=633e6e1a7cd1d39196d0384aa9875b85','0','0','')
mysql error: Duplicate entry '021ca24659b37be830384e998982ff07' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 13:55
Script: /board.php?boardid=160&sid=633e6e1a7cd1d39196d0384aa9875b85
Referer: http://wehrbauten.de/board.php?boardid=160&sid=633e6e1a7cd1d39196d0384aa9875b85