It came to my attention a while back that the Anvil
1.1.6 version was suffering from a bout of AutoUpdate-itis.
The issue was that the auto-update was occurring over a non-https URL and the app's transport security settings weren't configured for this.
This is fixed in version
1.1.7 but obviously, you wouldn't know that from autoUpdate in the earlier release
So, you'll need to download a new copy from from the Anvil Website.