On my mac I upgraded the operating system to os Catalina version 10.15.4.  I have a current webroot subscription and the new desktop screen shows a webroot icon.  The problem is that when I click on that icon, the app does not open.  I do not have my current key code.  I tried to reinstall the app using the name and email listed on the subscription but keep getting an error message.  I do no know if it is a problem with the os Catalina, with its settings, or with the webroot app. Any advice would be appreciated.