Problems with Gm Golden Day?

Gm Golden Day is a Garry's Mod map created by Skerion. As the author says it's a map heavily inspired by another Garry's Mod map, Gm Bigcity. GM Golden Day contains a plentiful amount of interiors, roads, buildings, and places to get lost in which is a reason why many animators of SFM have tried to import it from Garry's Mod. Now I'm not going to show you how to import Garry's Mod maps, or models because, well, there's already a lot of tutorials and guides on that.

Often times people get this map imported and either two things happen:

1. The map does not load which means you did something wrong
2. The map boots up like any other map but there is an issue

The issue is that everything looks fine all the buildings, roads,sky, it's all fine. But the real problem is when they look at the grass and trees. The grass is missing its textures making it an ugly purple and black checkerboard texture and the trees are the iconic big red ERROR sign. People often get stumped at this part, trust me I did. I tried moving files and redoing the whole importing process over and over. Nothing changed. I tried for weeks on end in file explorer but nothing worked

Golden Day missing grass and trees.

I had looked all over Google, Steam, Youtube, and nothing. But then I heard of this website called
SFM Lab. Everything was coming together now. I searched in the website and I found that Gm Golden Day (both day and night versions) was available. I then looked up a tutorial and when I was done and I opened up SFM...
It worked!

So this is the actual guide bit of this whole things so get ready.

1. Go to your browser and search SFM Lab (it should be the first link) then go into SFM Lab.
Then at the top left press browse. Then in the search bar put "golden city" Then one option should appear.
It should look like this:
2. Scroll down and find download and press download (This is not a sketchy download, I had to do this process myself)

Then It should give you an option on where to download, which doesn't change where it goes on you computer and pick one of the free server ones.

3. After a few minute download it will be in your 'Download' section in your files. It should appear as
   'Golden_City_Day_Night_PhoJFH7' as a zip file

If you can't read the image then this is what it's saying extract the files from 'Golden_City_Day_Night_PhoJFH7'. Then when go into the non zip file version you find the file Golden City Day & Night.

Copy that file and go to your SFM usermod and copy them in there, not in usermod maps,models, just the usermod area.

Now that the file is in when you boot up SFM and select Golden Day as a map it should appear like this:
Now you might be thinking "Well the trees work but now the grass is an endless void"
Well if you spawn a model it will look like this:

And there you go!

Thank you for using my guide and hopefully this helped. I've spent weeks not only trying to find the solution to this problem for myself, but also so I could help anyone else.

If you have any comments or questions feel free to ask and I'll try to reply.

Thanks again!