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 ('926f5eb1d3b45fca169a23f1140ac735','0','3.149.233.72','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714666123','board.php?boardid=100&sid=7d3d08eb7394b1374ddd38626fedc980','0','0','')
mysql error: Duplicate entry '926f5eb1d3b45fca169a23f1140ac735' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 02.05.2024 @ 18:08
Script: /board.php?boardid=100&sid=7d3d08eb7394b1374ddd38626fedc980
Referer: http://wehrbauten.de/board.php?boardid=100&sid=7d3d08eb7394b1374ddd38626fedc980