Ok... I found this response from ZorinGroup that relates, as well as several threads that remain unsolved on this issue. Here is the response from ZorinGroup:
We've tried to replicate this issue on our computers but haven't encountered it yet.
In order to narrow down whether it's an issue with the AppIndicators shell extension or [Application], perhaps it might be helpful to try installing an alternative system tray extension – like "Tray Icons Reloaded" – to see if the error still occurs. It can be installed on a stock Zorin OS 16 system by following these steps:
Open the Terminal and enter this command: sudo apt install gnome-tweaks chrome-gnome-shell
Open the Zorin menu > search & open "Extensions"
Switch off the "Zorin AppIndicators" extension in the list and close this window.
Navigate to this page in the Firefox web browser: Tray Icons: Reloaded - GNOME Shell Extensions
Select the option to install the Gnome browser extension and follow the on-screen instructions to complete the process.
After the browser extension is installed, reload the webpage for the "Tray Icons: Reloaded" desktop shell extension.
Click on the switch to turn on this extension, and accept the prompt to "Install" it.
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