Hello i have a friend who dont speak English so he ask me to help him but i dont know how. he has  PTA and when he active it he get on is p3d a  black screen . so i disabled it for him but still he payed money. 

does someone know how to fix it. 

and does envtex support tomatoshade? 

How long did that black screen persist? It can take a while until the shaders are rebuilt depending also on the GPU.

So you might look at up to 2 minutes of black screen before the textures come back.