imessage ipod touch wont connect

hi,

i have a ipod touch 5 g and i changed my email adress of my apple id because the old adress the server are close, so i have try to connect my "new" apple id but the email adresse isn't my primary adresse so a change the reception adress in imessage and the app have crashed. so i have try a few times and an error is always appear "try to reconnect later".

please help me !!!