The first thing to do is go to Task Manager and find ProSeries Updater and end task. Then from the start menu go to ProSeries 2019 and use the drop down and run Tools Repair Updates and make sure it downloads and installs. After that go back to start menu and scroll down to ProSeries 2019 and run HomeBase Tuneup. After complete right click on the icon on desktop and run as administrator. It should start up and open with no problems. You should run refresh updates from the update menu at least once a week