Invalid App Credential

[martin3398]

When trying to get the OTP, I get the following error:

Exception: Error when sending the OTP request. Probably the quota is exceeded, try again.

When further inspecting the response, I get the following:

{'error': {'code': 400, 'message': 'INVALID_APP_CREDENTIAL', 'errors': [{'message': 'INVALID_APP_CREDENTIAL', 'domain': 'global', 'reason': 'invalid'}]}}