I'd suggest you upload your original files from your computer again and start over from scratch.

I haven't gotten as far as testing the downloaded Desktop app, yet... but, I wouldn't test the Client on the same computer I'm using as Admin.

Just to be absolutely sure its not a conflict between Client machine and Admin machine. (probably not)

But starting over from the beginning and going through each step with the prior knowledge of doing it once already; (and of course AFTER you've calmed see more down); you may have better results.