I can't launch unreal engine

Helo
I am student on a gaming school and I need unreal to worck at home.
But when I finish to install unreal and try to launch it there is an error message that says “the elements to install unreal engine couldn’t be install”, with an error code “LS-00196IS6PQR5100”.
The problem is I can’t find on google how to repear the bug and I already try to reinstall all, and it faild
So please I need your help

Thanck you for reading and answer