SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_user2awards (userid, awardid, autoawardid, beschreibung) VALUES ('15', '29', '5', 'Glücksrad')
mysql error: Duplicate entry '15-29-5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.21-nmm1-log
php version: 5.5.38-nmm3
Date: 20.05.2018 @ 17:32
Script: /wbb2/jgs_portal.php
Referer: