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 ('5b3b0b17678a11c13f2fd72fa6783ec0','0','3.149.214.32','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715064702','board.php?boardid=728&sid=fcee0274de4f151a885250518b229ad1','0','0','')
mysql error: Duplicate entry '5b3b0b17678a11c13f2fd72fa6783ec0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 08:51
Script: /board.php?boardid=728&sid=fcee0274de4f151a885250518b229ad1
Referer: http://wehrbauten.de/board.php?boardid=728&sid=fcee0274de4f151a885250518b229ad1