Apple iPod touch "numbers working laptop gt solve" Questions

working up until 2 nights ago, it still says it has medium signal strength, but if i open the itunes store or any other sort of internet connection, it just says either "loading" or "invalid argument"

...laptop computer & recently bought her a classic i-pod, I managed to download the music from the copmputer originally, but recently tried to add another CD which she wanted on the i-pod, when I ...