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 ('26bfdca53bd88bfb4909b3a143eaf78d','0','3.134.253.192','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745052252','report.php?postid=26660','0','0','')
mysql error: Duplicate entry '26bfdca53bd88bfb4909b3a143eaf78d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 19.04.2025 @ 10:44
Script: /report.php?postid=26660
Referer: http://gttempel.de/report.php?postid=26660