TOPIC: Help Please

When ever i go into the server my texture pack is all pink and balck how do i get the texture pack i tryed relogging it didnt help !?

I'm pretty sure you need Counter-Strike: Source installed, that should fix the problem. You also need to mount the game after you've installed it, you can follow this guide.

You can either buy and install CSS or find a tutorial on YouTube on where you can get the textures legally for free and how to make them functional as you need to put them into your addons folder for GMod after downloading them.
Feel free to add me on Steam if you need any help.

A quick tutorial i just found that is pretty highly rated.

You could also try and do !zarpcontent in-game to receive all the custom content.