I have installed the plugin successfully, I have an account at xpressdelivery.app.

I copied my Google API key and put into the “keys”
and Copied the “Token” from my xpressdelivery.app account into the “Merchant Token”

I created a page and input the form using the shortcode. But when I try to input a task through my website, it returns an error message “API SERVICES KEY NOT VALID”

Please Help!