Hi,
I try in 3 browsers, Edge, Chrome and Firefox, I have also used proton vpn to test if it would not let me enter and also presented the same problem, also in browsers use incognito mode in case any extension affected and also is not solved and I consulted a friend and in the capture that I shared I saw that in the top right where it should leave the registered user comes out the same login in and reedem but so far let him enter the (is from mexico)
It seems that at the moment I can enter correctly to the web page and make the changes, although it is very strange that it says that I don't have the game, as indicated in the two previous comments although the skins are a little bugged, I imagine that the problem is also being solved.