An error occurred loading the update
I've been trying to download the Big Sur for a month but after so many tries the same message shows up '' An error occurred loading the update '' .
I have 36.06 GB free space on my storage , and the 12.23 GB Big Sur Installer is already downloaded !!
And i have a fast internet connection on my Macbook Air 13 2017 .
What is needed to get the new Update ?
MacBook Air 13″, macOS 10.15