General Assets URL

[CyrusXxX]

Hello I have one maybe silly question related to General Assets URL configuration.

When I visit templates section and change that url from components/com_virtuemart/assets/ to  media/shop/ nothing happens.
After that I have copied content of assets folder and put them in new url and deleted original folders and still new location is not loaded.

Can you tell me what am I doing wrong?
Joomla 3.8.10
Virtuemart 3.2.14
Wamp server

Thank you!