Thanks Gazumped. I tried all the mentioned suggestions and still not able to load the app. Thank you again for the help.
I have android 8.0. Repeatedly getting Error Code -506 message at the final point of installation. Ever note was previously on my phone until I had to do a full restore of my phone recently. All other apps are downloading without issues. I have already done the suggestions on Google Play help. Thank you in advance for any advice.