Amazon Error Response - You do not have access to the Resources

How do I fix this?
It says I should ask here.

Hi there!

Could you try a hard refresh on your page? Ctrl + Shift + R for Windows / Cmd ⌘ + Shift + R for Mac.

I also have this problem when I “Upload to Alexa”, and a hard refresh doesn’t help. How do I fix this?

Hi I’m also having this issue in Feb 2020 - any fixes or ideas?