Sorry, but Can’t Figure Out Hosting on 1&1

I used to have a website that was completely without php on 1&1 hosting, which I heard was not ideal for WP but functional. Now, I want to try out WordPress, following many websites including the main 5-min install full of directions that should normally work. I also searched the forums and I saw that some others got similar problems. I set up the wp-config file with the database name/user/etc. and I FTPed all of the files onto my root directory, yet when i type in my domain: https://www.abovetherefs.com/wp-admin/install.php, it simply gives me ‘The Page Cannot Be Found.’ If anyone has had a similar error or has an idea of how to fix this any help would be appreciated. Thanks a lot and have a fantastic day.