Prairie Fiber Arts Center review for QuickBooks Online

I have used the app for over 5 years. This morning when I tried to launch the app I get error messages telling me to contact support. After a considerable amount of time with support, I got a "solution" to copy and paste a link into an incognito window from now on when I want to sync my data. How is this even a thing? At best this is a BAD work around. The app was working fine on Friday and today it is not. What happened?