PE2020 Update Issue

I recently discovered that there is an update to PE2020.  When I chose "Install Now" to download the update, I got this message

"There is no application set to open the URL auphd://update?sapCode=PSE&baseVersion=18.0&platform=osx10-64&skipUpdateInfo=true."

I have absolutely no idea what all this goobligook means or what I'm supposed to do next in order to download and install the 2020.1 update.  HELP!!!!