

The “Lua Panic – Not Enough Memory” error is a sign of Garry’s Mod running out of memory (RAM) to work with. The easiest way to fix the textures is to actually buy the game. A lot of mappers use materials and props from that game. Purple textures and big red flashing errors in gmod are usually caused by you not having Counter-Strike: Source.

After going into properties click SET LAUNCH OPTIONS… now there should be a box that you can type into on your screen, to fix the LUA problem you need to type in one of the following corresponding you your ram.
