Issues when returning to stock

Looking for a little help please.

Trying to return to stock and I have flashed 2 different stock roms from samfirmware, nd each time when booted it tells me messenger has stopped working.

If I open the app it force closes.

Any idea what might be causing this? I need it back to stock ASAP as I am selling the phone.

It's starting to give me a real headache at the moment

Thanks in advance

Sent from my Nexus 7 using xda premium