Upgrade from 2.2.4 to 2.6.9

Hello, I was running 2.5.4 happily for 2 plus years. I found too many albums & files in favourites and could not delete any. Next I uninstalled A+ and then reactivate it. I cannot get the new version to upgrade to the latest 2.6.9 version. I keep getting the message: “An error occurred while extracting the archive. Please try again later.” I would like to upgrade back to 2.5.4. Is this just a lack of patience on my part? Please some advice or direction. iMac 21.5" Late 2012 8Gb 1600 MHz DDR3 OS High Sierra, Audirvana+ 2.2.4 License Nov 2015

Sincerely Keepee