When the terminal used for guest lookup does not have enough free space on the hard drive, some files (e.g. punchhinter.config) will not be copied to the C: Drive on that terminal.
As a result, the following error message will be displayed:
In order to resolve this issue:
1. Free up some space on the C: drive
2. Reboot the terminal
3. Try performing a user lookup with a valid phone number
4. You should now be able to look up guests successfully