[quote quote=72955]Can you just try with another messaging app and see if it works??[/quote]
I did try google messenger, Verizon Messenger, and it had the same problem, also got error messages about the phone app.
“com.android.phone keeps stopping” so I think it is deeper then the messaging app?
I am not the first report of Verizon problems, over in XDA another had problems too.
https://forum.xda-developers.com/showpost.php?p=78315658&postcount=7
I would try and edit the APN, but it is greyed out and can’t be edited.