How to retrieve deleted Phone files on Galaxy 8?

[Minnesotamiss]

How to retrieve deleted Phone files on Galaxy 8? My Messenger  app will work, but sometimes crashes with message that says "Com.android.phone" stopped. This file is missing when I try to find it in the system files. HELP!!

[vzw_customer_support]

Minnesotamiss,

Help is here! We want to make sure you're able to recover your important content. Allow me to gather a few pieces of information to get started. What exact files are you trying to locate? What text application are you using? Do you notice that you're doing something in particular on your device when the error message "Com.android.phone" comes up?

AliciaS_VZW
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[vzw_customer_support]

Minnesotamiss, we want to make sure your phone and apps are working as they should. We are here to provide support. Can you tell us more about the messenger app you are using? When did the problems start?