When you use old version of our program you can see error #SA4 when searching for updates. There is nothing serious or critical, don't worry. This error mean that you're using old version of the program which is connected to our old server.
How to fix this error?
This error wont go away by itself. You will need to download and install new version of the program. That's all. Just download setup file from our web site manually and install it. New version knows new location of updates server and wont show you this error anymore. If you wont do it, you will not get any update ever.