Installed, uninstalled and searched for all files pertaining to webroot, re-installed lastest download version.
Result: app appears to load, as it sits in dock and will create a window when selected. Window is blank and icon doesn’t appear at top of screen. Process appears to be running but not menus or windows available.
There’s a myriad of issues with Catalina, MAC OS X and Webroot in general. Best to place a support ticket or call and speak with them to complain and voice your concerns. The more people that complain, the faster they’ll hopefully make a product worthwhile to use for protecting MAC OS.