I recommend clicking on the underlined text our Replit starter project in the project instructions and it will automatically create a Replit repo for you to use with the curriculum.
Just create a new thread if you’re having additional trouble that way it gives people who might be suffering from the same problem you are a chance to learn something too.
You are not using the correct URL. You have to use the one from the preview window, not the editor link.
It will have this format.
https://the.replit.name.yourUserName.repl.co
Also, none of your Replits I looked at has the button to open in a new tab which usually means you didn’t set it up correctly. Remember to click the “Done” button when you import the boilerplate.