SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.4): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('11478c1dae8aa0ac450debdd870f2e26','0','3.137.188.11','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715342944','profile.php?userid=159697&sid=425ca173d747b0a67895932f50c1cfea','0','0','')
mysql error: Duplicate entry '11478c1dae8aa0ac450debdd870f2e26' for key 1
mysql error number: 1062
mysql version: 4.1.22-standard
php version: 5.3.29-1+hw8
Date: 10.05.2024 @ 08:09
Script: /wbb2/profile.php?userid=159697&sid=425ca173d747b0a67895932f50c1cfea
Referer: