Not sure what I'm doing wrong here. It's working in another game, but not in this one..?

Here's the issue I'm getting in the developer console.

https://cdn.discordapp.com/attachments/268953014004350977/701603961546866775/unknown.png

There's nothing in Line 613 about a function __call. It's just a variable. The other issue is about another script, in Line 7.

local DataStore2 = require(game.ServerScriptService.DataStore.MainModule)
local limit = 800

while true do
	wait(60) -- 1 Mins: 60
	for _, player in ipairs(game.Players:GetChildren()) do
		local bankStore = DataStore2("Bank",player)
		local got = bankStore:Get(0)
		if got ~= limit then
			if player:IsInGroup(4339340) then
				bankStore:Increment(7)
			elseif player:IsInGroup(4609084) then
				bankStore:Increment(10)
			elseif player:IsInGroup(4609362) then
				bankStore:Increment(13)
			elseif player:IsInGroup(4621123) then
				bankStore:Increment(10)
			elseif player:IsInGroup(4503448) then
				bankStore:Increment(13)
			else
				bankStore:Increment(7)
			end
		end
	end
end

There may be some information I'm missing here. It's working in another published game, but not on this one. What do I need to change?