Sage One accounting *******!

I’ve been using the app since we signed up with sage a few years ago. A few months ago it got nearly impossible to use the app. It always says:”check your internet connection” or “failed to load data” and even duplicating entries. A nightmare! After reporting it to Sage, their recommendation is to remove the app and reinstall it. Well how do you reinstall an app that now longer is available? The new app is a load of ****! As contractors we require a working app with simple UI to use while on site. I did not sign up for this!