Error message “Oops! It appears there was a drop in our connection” issue

I was almost done with my taxes and I got this error message. After that I haven’t been able to access my taxes or see any other info, it’s extremely annoying. I went through all troubleshooting steps and nothing works...cleaned cookies, used diff browsers, restarted internet, used incognito. This is unreal. I called customer service and they can’t help. Where is the IT dept for God’s  sake? I’m gonna have to use a diff company.