Ipod nano 1st gen (not recognized by iTunes and won't resotre)

My ipod nano 1st gen has been working fine up untilthis afternoon..I plugged it in as normal while running iTunes and I wanted to remove some music files t add new ones and all of a sudden it wasn't recognized by itUnes anymore, you can't resotre it on iTunes or manually and whenever I plugge it in the itunes shut down..

It was working fine before that, I was able to add and remove songs on it..I also have Ipod Touch 5 that works fine no problems and UBS ports are ok as well (all other ubs devices work on them). I have the latest, newest version of Itunes instaled

HELP

Thank you