Cannot purchase coins - Cannot connect to store Please check your internet connection.

When I was looking to see the minecoin prices it gave me the error on the picture. My wifi is running normally and I tried another wifi and it gave me the same error. There is text behind it that oddly states minecraft coins cannot be purchased on this version error as well. Please I need someone to fix this, my ign is on the top right corner. I don't know what can be causing this. Just a week ago I was able to purchase stuff fine.