have it work

Error

You have exceeded your rate-limit for this API. We recommend registering for a key at the Google Developers Console: https://console.developers.google.com/apis/credentials?project=_
js:51:50
Google Maps JavaScript API warning: NoApiKeys https://developers.google.com/maps/documentation/javascript/error-messages#no-api-keys
util.js:224:33
Google Maps JavaScript API warning: SensorNotRequired https://developers.google.com/maps/documentation/javascript/error-messages#sensor-not-required