Using GCM to send notifications on app, returns InvalidRegistration error

If you are retrieving token from db make sure the data type for the column is either text or a very long varchar like 200. The token is more than a 100 characters long so it might be getting cut in half to be stored in the db

Invalid Registration ID Check the formatting of the registration ID that you pass to the server. Make sure it matches the registration ID the phone receives in the com.google.android.c2dm.intent.REGISTRATION intent and that you're not truncating it or adding additional characters. Happens when error code is InvalidRegistration.

So basically you are making an error in sending the DeviceID received by the phone to the server. Make sure your code does not alter the deviceId in any way. You have not posted the code for accepting the Id's. There is a mistake in that part or the storing of the DeviceId's. I don's think there is any error in the code you have posted as the errorLog show's Invalid Registration