SQL-DATABASE ERROR

Database error in pd Script: Invalid SQL: Insert Into pd_rechnung (sessionid, zeit, art) Values ('crl6a7tnicc8h6s5ntl5j6cp62', 1743728105, 1)
mysql error: Field 'iduser' doesn't have a default value
mysql error number: 1364
Date: 04.04.2025 @ 02:55
Script: /rechnung_neu.php?art=1&phpMyAdmin=kSdVEcrW9JgLk8afnGhkZl7xHhe&step=2
Referer: