Step 1: Click on "Get Login URL"
Step 2:
Login Using Your Google Account & Give Permission to access Drive in order to Store Files in your Drive.
Step 3:
After Login, Copy the Full URL from "AddressBar" that will look like this -> http://localhost/login?code=4/0AfgeXvtgh1DJwksE2GTGITbvEo75uXB
Step 4:
Paste that Copied URL in "Enter Login URL" input box then Click on "Submit Login URL" button .. THAT\'S IT