SQL-DATABASE ERROR

Database error in pd Script: Invalid SQL: Insert Into pd_rechnung (sessionid, zeit, art) Values ('akqqetrrpfrfhbn0fvq8hhc3m0', 1722066920, 1)
mysql error: Field 'iduser' doesn't have a default value
mysql error number: 1364
Date: 27.07.2024 @ 09:55
Script: /rechnung_neu.php?step=2&art=1&phpMyAdmin=kSdVEcrW9JgLk8afnGhkZl7xHhe
Referer: