Are you kidding? You’ve never used this and just expected to figure it out, and yet you didn’t even try the example first?
Yes, try your credentials with the demo FIRST. This is learning and debugging 101.
If you get the sample to work with your credentials, then you know:
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Your credentials are good.
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The version of the plugin + Corona you are using are working.
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You have something to compare your code to.
This is incredibly fundamental.