Calling Function with Table?

Basically what I'm trying to do is take a value from a table based on which global variables are set to true and use it to call a function. Here's what I've got so far...

CheckMode = {"Normal", "Classic"}
ModeFunctions = {Normal, Classic}
--colored not needed table

function execute(func)
	func()
end
function Normal()
	--there's stuff in here, but it's not relevant to this post.
	--I'm just showing you this exists
end
function Classic()
	--same as above
end

checked = false
foundmode = false
while true do
	if checked == false then --Have we already done this?
		for i,v in pairs(CheckMode) do
			if _G[CheckMode[i]] == true then
				currentmode = i
				checked = true
				foundmode = true
			elseif foundmode == false then
				warn ("Mode Function not found! Assuming to be Colored...")
				currentmode = 1
				checked = true
			elseif foundmode == true then
				print "Already found mode!"
			end
		end
	end
	execute(ModeFunctions[currentmode]) --Attempt to call local 'func' (a nil value)
	--execute(Normal)
	wait (.5)
end

The line that errors is execute(ModeFunctions[currentmode]). But strangely enough, brute forcing the function works fine: execute(Normal)

Anybody have the solution for this? Thank you!

It was exactly as UndeniableLimited said! The table needed to moved.