An error occurred during connecting to the server: Max site size exceeded (10485

Is it possible to deploy manually? At least Netlify gives a possibilty. Don’t know whether this works properly.

In this case I assume the steps would be :

1. Sync Your Website
2. Drop and drag site folder into Netlify –> Where is the updated site folder located?
3. Netlify should manually deploy

So far the theory. Does this really works this way?

Thanks