map error

Working on a local dev site, so I cannot post a link, however when I insert the Map block, I receive an error:
“This block has encountered an error and cannot be previewed.”

Looked into the configuration page for this (Adv. Gutenberg) and aside from the longitude and latitude being set to my location, and height set to 50, I do not have anything else in the fields. What needs to be set in order for this to work?