SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('0acdb30ee271ac40f14eddce7a00afa5','0','216.73.216.63','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1750782724','formmail.php?threadid=1668','0','0','')
mysql error: Duplicate entry '0acdb30ee271ac40f14eddce7a00afa5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 24.06.2025 @ 18:32
Script: /formmail.php?threadid=1668
Referer: