Uploaded PNG stickers are totally white but other products is fine

i uploads png transparent file. all other products look right but the sticker is totallt white.
when uploading svg it says error why is that?

I ran into this issue with water bottles. Is the design white? Because if so, it’ll not show up on the stickers because they don’t print white ink on the stickers

Thank you for letting us know. We have deleted the travel mug with white logo from our product offering. The proof on our end shows that it is working correctly, however, we wouldn’t want you to purchase a mug and have it arrive like it was showing up online. We do apologize for any inconvenience this may have caused. Thank you for your ongoing support of Kraken Robotics.