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 ('687345b7c56d44f1e7fd98d7c5c595b4','0','3.15.7.195','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1744984690','print.php?page=1&threadid=835','0','0','')
mysql error: Duplicate entry '687345b7c56d44f1e7fd98d7c5c595b4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 18.04.2025 @ 15:58
Script: /print.php?page=1&threadid=835
Referer: http://gttempel.de/print.php?page=1&threadid=835