Apple imac Catalina OS issue fix it..
Apple has latest macOS Catalina 10.15, and most of users would like to install the newest macOS on their Mac desktop Laptop. some of users are are suffering from many annoying Catalina problems.
One common macOS Catalina problem that people have encountered is that macOS 10.15 fails to download, with some users seeing an error message that says “macOS Catalina download has failed.”
some cases users are not able to download/install macOS Catalina, apps says won’t work, iCloud is not available, or you have connectivity issues with WiFi or Bluetooth on macOS Catalina.
and “The network connection was lost” error messages when they try to download macOS Catalina.
So the best solution to get rid from this kind of issue is to degrade by re- installing your OS in some of previous version of iMac OS such as MacOS Mojave MacOS High, Sierra MacOS Sierra.
After this recent update of mac OS version 10.15 (Catalina), Apple also ending support for 32-bit applications.
Wolfram products Mathematica based on 32 bit are not compatible with macOS 10.15 or later.
Contact :- https://www.techitadmin.com/ for any technical help and support required to reinstallation of compatible working Apple iMacOS.