Sprays Doesnt Show Up in Import section

Ok so I have been playing gmod for a bit But I don’t really change my spray often. Yesterday I decided to change my spray and I did what everyone on youtube told me to do ( I forgot how to change my spray since I haven’t done it in a while) but now no matter what I try THE SPRAY NEVER SHOWS UP in the import section. It shows bin, garrysmod, platform, and source engine BUT no picture! I have been trying to fix this for a while now but I can not get it to work. I have tried different pictures but it still does not work. Someone help please.