An error message that informs the user of a specific error that occurred when one of their maps was uploaded, when the game has assumed that the error is due to a missing preview image that is required. The term 'StartUgcRequest' needs to stay as-is. 'Code' refers to an error type or classification.
Make sure you have a preview.jpg, .png, or .gif file in your city folder.
Sjekk at du har en preview.jpg-, .png-, eller .gif-fil i bymappen.