Asset not importing

I bought Vectrosity, imported and installed it. It worked. Later i wanted to reimport it and deleted the files. Now i cant import it. Its supposed to be lots of folders and files but i only get these. And then i try to import them i get an error. “Moving File Failed. Moving [path] failed. Acces denied.”

I have no idea how this problem was fixed. But the day after i could re-download it.