Authentication failed MacOS

I am new to forestadmin. I create an account and try to connect to by creating new instance of mongodb.

I give all credentials and try to connect through my terminal using npm. It should be connect with command given in npm section. but it failed with error:

:heavy_multiplication_x: Connecting to your database
Cannot connect to the database due to the following error:
MongoNetworkError: Authentication failed.

npm : 6.14.8
node: v12.18.3
lumber: 3.7.2

Hi @Uzair_Raza,
Welcome to the Forest Admin community!

Are you confident that your MongoDB credentials are the right ones?
Can you connect directly to your database with those credentials?

Another random question comes to my mind.
Do your username and password include any non alphanumeric characters?

Thanks for your answer.