instance already running

[handensco]

I have a gs911 and have noticed it for a year. I have a MacBook Pro. When I click on the GS911 icon it says "Another instance of gs911 Utility is already running in the system tray. Application will exit." How do I get past this or where in my MacBook Pro is the system tray. I am not real computer savy so any help is great. I was thinking of loading it onto my iPad 10 but Ineed to get past this on my MacBook Pro.
thanks
David