How do I get CM12 messenger app to work on the Note 5?

I love all the options cm gives in their messaging app. Any one know how to add it and not get for closes?

G900A Unrooted: Error -505 Downloading Facebook Messenger Fail

No matter what I seem to do, i cannot successfully install Messenger. It downloads perfectly fine, but then it fails and gives me error -505. Cant find anything about an error -505. Cleared data on google play, uninstalled its updates, cleared whole phones cache, uninstalled previous version of messenger, restarted phone, and nothing will allow me to install it. Have 3GB of free space internal.

(Excuse me for posting two different threads. Did not want either situation overlooked.)

Facebook Messenger push notifications delayed

Hi guys,
So i use to have stock rom on my Moto G2 and Facebook Messenger worked for a few months and then one day the notifications started playing up. They always showed up 2 minutes later or they didn't show up at all until I pressed the power button. It was as if the notifications were stuck until i pushed the power button and they would all flow in at once. So I decided to root my phone and get a custom rom to try and fix this problem. I have been to no avail for the past 2 months and it is really pissing me off. :mad: I have switched between countless roms and none of them seem to tackle this bug! Any help would be so so appreciated!!!!!!!!!!! Thankyou in advance :o