Google Earth Super Overlays API not working

1. Make sure your API key is valid.
2. Check the format of the URL: here’s a format example: https://api.nearmap.com/super-overlays/v1/kml?apikey=YWGuYTJjNIUtYjhjMC87MjdjLThjKDEtNTYzYzUwYa74MTIz