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 ('dc72c1bc6cf8e294ea814b54840e2682','0','44.201.72.250','CCBot/2.0 (https://commoncrawl.org/faq/)','1695363764','thread.php?threadid=2511','0','0','')
mysql error: Duplicate entry 'dc72c1bc6cf8e294ea814b54840e2682' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 22.09.2023 @ 08:22
Script: /thread.php?threadid=2511
Referer: