Fuelly Gas Tracker Issues

[groundtrooper]

I just upgraded my iPhone from a 5 to a 6s. I did an iTunes backup of my 5 and restored it to my 6s.

Ever since when I launch Gas Tracker I get the "Logged Out" error. It states that my "user credentials" have changed. I hit Login and the error goes away, until the next time I launch it and it pops up again.

Also I noticed that my Web data has not been syncing with the app. I am missing a bunch of date on the site. The app is current. I have tried "syncing all data" in the app, but the loader just spins and spins and the sync never seems to finish.

Any help on either of these would be great.

Thanks