I keep getting alerted regarding unread Facebook messages even though there is none My phone beeps and tells me I have an unread Facebook message even though I don't. I've got a hunch what the source of the problem is. I have both the Facebook app and the Friend Caster app and they are connected to different Facebook accounts (one's for work one's for my personal life). Is there way I can stop getting these false "new message" alerts?

I want both my Facebook accounts on my phone because then all the contact numbers get pulled off both accounts. If anyone can think of a better way I'm open.
It looks like Friend Caster is considered end of life so that may be the problem. Facebook apparently made changes to their api, so it has been discontinued. Source https://support.onelouder.com/hc/en-us/articles/204558634-What-Happened-to-FriendCaster-

You should be able to have 1 account on the app and one on the preferred web browser, or you could go the route this page talks about https://android.gadgethacks.com/how-to/set-up-two-different-facebook-accounts-one-android-device-0161254/ 

There are probably other workarounds but these are the ones I found with a quick google search.