Marketplace glitch

I have a bunch of things from the marketplace (all of which were free which is why I have them) but after using it once (such as creating the world), they have an error saying "Downloading..." even thought they aren't. They could have just taken them off of the marketplace or made them not free but if the second option applies, it doesn't give me it doesn't give me the option to buy it. Sorry if it isn't a glitch or anything, thought I might just bring it to your attention.