One of our staff is using a MacBook Pro purchased around 2008 or 2009 with the following Specs:

OS X El Capitan version 10.11
2.8 GHZ Intel Core 2 Duo
8GB of RAM

We tried to install Novell Filr 1.2 Client for Mac on it. After install, we got the following error message: Error loading Filr Finder Plugin. Please tell me how we can fix this problem. Thank you.