Erroring to choose a random pet, anyone can tell me whats the problem and how to fix?

local petModule = require(game.ServerScriptService:WaitForChild("PetModule"))

script.Parent.MouseClick:Connect(function(player)
	
	if player.leaderstats.Cash.Value >= 500 then
		
		player.leaderstats.Cash.Value = player.leaderstats.Cash.Value - 500
		
		local pet = petModule.chooseRandomPet()
		
		print(pet.Name.." selected")
		
		 game.ReplicatedStorage.HatchEgg:FireClient(player,pet)
		
	end
	
end)

I am a bit confused with this error. I had used a click detector, got it to work. But it's suppose to transition to something . But instead gives out this error

Workspace.Model.text.ClickDetector.Script:9: attempt to index nil with 'chooseRandomPet'

help

local petModule = {}

petModule.Pets = {
	
	["Legendary"] = {
		game.ReplicatedStorage.Pets.Burger;	
	};
	
	["Rare"] = {
		game.ReplicatedStorage.Pets.Jellyfish;
	};
	
	["Common"] = {
		game.ReplicatedStorage.Pets.LightDemon;
	};
	
	
}
-- 100 Total Weight
petModule.rarities = {
	
	["Legendary"] = 10;
	
	["Rare"] = 30;
	
	["Common"] = 60;
	
	
}

petModule.chooseRandomPet = function()
	
	local randomNumber = math.random(1,100)
	
	local counter = 0
	
	for rarity, weight in pairs(petModule.rarities) do
		counter = counter + weight
		if randomNumber <= counter then
			
			local rarityTable = petModule.pets[rarity]
			local chosenPet = rarityTable[math.random(1,#rarityTable)]
			
			return chosenPet
			
		end
	end
	
	
end

return PetModule

I think the problem here is that you are assigning the function to a variable, so instead of doing:

local pet = petModule.chooseRandomPet()

Just do:

petModule.chooseRandomPet()

Then of course if you want to see what pet was selected you could check through the module script. Hope this works

Please read through your script carefully. Scripts are case sensitive.

Corrected code:

local petModule = {}

petModule.Pets = {

    ["Legendary"] = {
        game.ReplicatedStorage.Pets.Burger; 
    };

    ["Rare"] = {
        game.ReplicatedStorage.Pets.Jellyfish;
    };

    ["Common"] = {
        game.ReplicatedStorage.Pets.LightDemon;
    };


}
-- 100 Total Weight
petModule.rarities = {

    ["Legendary"] = 10;

    ["Rare"] = 30;

    ["Common"] = 60;


}

petModule.chooseRandomPet = function()

    local randomNumber = math.random(1,100)

    local counter = 0

    for rarity, weight in pairs(petModule.rarities) do
        counter = counter + weight
        if randomNumber <= counter then

            local rarityTable = petModule.Pets[rarity]
            local chosenPet = rarityTable[math.random(1,#rarityTable)]

            return chosenPet

        end
    end


end

return petModule