Some props wont load

Hello guys , we wanted to add on our server this map : (https://www.gta5-mods.com/maps/og-ferrari-dealership#description_tab). When we added it to our server , we started it , but some props won´t load.
I was allready searching on forums ,but I didn´t found anything. Help me please.

Did you install it properly?

Yeah. I m installing this map same as any other map.

Hey all o can say is reinstall it and watch this video. It may help you. https://www.youtube.com/watch?v=BnS_0JFCHSM&t