Shaders don't work

hello im new here let me explain so the mod is really cool so i wanted to try with shaders but i tried on fabric and forge with multiples shaders i searched on int the best ones for the mods but not a success and the best thing i could get is that screenshot but without the shader everything work normally
i m in single player and using Optifine DistantHorizons 1.6.5a and terraforged 0.2.16 and the shader i m using here is Shrimple
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