SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl 2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('827216c0028cc98005534f76f2f3f932','0','3.15.202.4','claudebot','1713416820','calendar.php?sid=02b458cce3e2e2d982f00460e6b33c86','0','0','')
mysql error: Duplicate entry '827216c0028cc98005534f76f2f3f932' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.44
php version: 5.2.17
Date: 18.04.2024 @ 07:07
Script: /calendar.php?sid=02b458cce3e2e2d982f00460e6b33c86
Referer: http://your-wbb.de/calendar.php?sid=02b458cce3e2e2d982f00460e6b33c86