I can't get my shaders to work

So I was trying to get some shaders working on my world. I got them on, but I accidentally messed with some setting. It ruined my world, making everything look black and white, with green as well. I tried to put the setting back to how they were, but it didn't work. It still wouldn't work. I tried logging in to hypixel to see if it only worked on my single player world. Nope. I started playing bedwars, when this text came up. It was saying "[Shaders] Error: Invalid program "gbuffers_hand"   I don't know how to fix this, but I think it has something to do with the text that appereared in shat