Question: I try add sandbox solution to SharePoint 2013 on subsite with event reciver on list, and don't work ;( 

On Root Web is O.K. event fired and do something what I wont, but when I activate feature on subsite then list was created but event don't working. 

Does anyone know why? I don't have access to Farm server, so I can't doing something on web.config or Central Administration.

Answer: 
No, it's not possible as certain Windows Server role/feature installation methods have changed.
Yes it posible with some change in installations files. You need to install prereq manual and download update for .net and put it install files.

In windows 2019 it isnt work. Only win 2016