OK, here's I fixed it.
From loader prompt, I used the command(s)
set kern.vty=sc
boot
note, using the set command is a temporary solution, read on...
this got me to the pfsense console
from there I accessed the shell and used the built in editor, vi, to edit the file located at /boot/loader.conf.local and added the line
set kern.vty=sc
which ensures this command is executed at each boot
saved my changes, rebooted