The error message is reporting that the VM is being created with an external IP. However, GCP Project XYZ does not allow VMS to be created with external IPs. The solution is to examine the tile generating the error above. It is likely the tile is configured with the INTERNET CONNECTED setting selected in the tile's respective Resource Configuration tab. The example below is the Telemetry Tile OM Resource Configuration page. Uncheck this box and retry the apply change.

Another possibility is that the GCP policies have changed no longer permitting external IPs and should be reverted back. This is managed by the GCP Administrator.