Not able to add product[Access Denied]

Hey… So I have wanted to contribute a splash screen for the community and i have all the idea how to make splash screen stuff… It says click on profile Icon and click on add product… but pling says Access Denied …(cant be accessible or requires an authentication)

I wanted to put my own custom splash screen also others can even use that …
I would be glad if this community could help me about this

I often get that as well, what I usually do is, log in again at the “Access denied page” that works for me
Hope it helps !!