The error message is “Rendering failed: File format is not supported or file extension does not match the file type” - this means that the image is not actually a png file, it is most likely a jpg file with a png extension.
I had a look at your JSON and can see that you are using a logo.png file. Unfortunately it looks like all the URL’s have expired so I can’t check them but my guess is that the logo.png file is in fact a jpg file.
If you export the file from image editing photo or can convert it to png it should work. Or to test you can change the file extension to jpg.
Note that we are working on a fix for this that will adjust to work with the wrong file types. For now however you need to ensure the file type and extension are correct.