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 ('b8850a5c13e720af05a5b972f5636551','0','3.137.161.116','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745231388','thread.php?goto=lastpost&threadid=878','0','0','')
mysql error: Duplicate entry 'b8850a5c13e720af05a5b972f5636551' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 21.04.2025 @ 12:29
Script: /thread.php?goto=lastpost&threadid=878
Referer: http://www.gttempel.de/thread.php?goto=firstnew_thread&threadid=878