Google have recently updated their API policies. Therefore you now need a Google Maps API key to use the google maps view in the Webshipper drop point selector.
Follow the guide below to retreive a key:
#2 Click the button “Get a key”, and press continue to create a project
#3 Login with your Google account
#4 Accept the terms and conditions
#5 You are now asked to create a Browser Key. Press “Create”.
#6 An API key will be displayed. Copy the key to the Webshipper options field in WordPress and click Update.