How can I make Shift + C activate my animation?

uis.InputBegan:Connect(function(key, gameProcessed)
		
	if key.KeyCode == **Enum.KeyCode.C** then
				
		
		if isCrawling then
		
			isCrawling = false	
			
			if loadedCrawlAnim then loadedCrawlAnim:Stop() end	
			
			loadedIdleAnim:Stop()			
			
			game.ReplicatedStorage.OnCrouchBegun:FireServer(humanoid, 16, 50)
				
		elseif not isCrawling then

			isCrawling = true	
	
			loadedIdleAnim = humanoid:LoadAnimation(crawlIdle)
			loadedIdleAnim:Play()
			
			game.ReplicatedStorage.OnCrouchBegun:FireServer(humanoid, 0.5, 20)
		end
	end	
end)

I need to make the key combination activate the animation, "the script is already complete and functional", and if it is possible since there is a plane that is saved with Shift + G, can someone help me? thanks