You have added a file upload question in your google form. This feature requires sign-in, so you will not be able to use the "Import using URL" option to create your form. Instead, you can install the Formesign - eSignature add-on and use it to customize the existing google form. Formesign - Esignature addon https://workspace.google.com/marketplace/app/formesign_esignature/210002188569 Formesign demo video https://youtu.be/GPaSEioRKJ8