Two things. One, "NEED HELP" is a terrible thread title. It tells me nothing about your problem, you wouldn't be posting here if you didn't need help. A thread title should give some idea of the problem.
Two, you have not supplied the relevant code, making it less likely that someone can help you.
As for your problem, it looks like your proxy isn't where you've told Forge it is.
You need to register an implementation of IBlockColor for your Block to recolour the greyscale grass texture when the model is rendered. Do this by calling BlockColors#registerBlockColorHandler in init from a client-only class. You can get the BlockColors instance using Minecraft#getBlockColors.
Look the BlockColors class for the vanilla IBlockColor implementations.