Damage not being taken when touched what should i do?

your syntax is incorrect use:

script.Parent.Touched:Connect(function(hit)
   if hit.Parent:FindFirstChild("Humanoid")
then
    hit.Parent.Humanoid:TakeDamage(115)
end
end)

if the answer helped you, don't forget to mark it as "answered"

The first thing you should do when interacting with touched characters is ensuring that what's touching the part is actually a player (so the logs aren't flooded with errors c;). I made a handy function that will get the player from a descendant of a character, and will return nil if the player wasn't found.

local Players = game:GetService("Players")

function getplayer(instance)
    for _, v in pairs(Players:GetPlayers()) do
        if v.Character and (instance:IsDescendantOf(v.Character) or instance == v.Character) then
            return v
        end
    end
end

Using this function, we can now easily determine whether or not a touching part is a Character or not and damage accordingly with a simple if statement checking whether or not player will be nil (see below)

script.Parent.Touched:Connect(function(hit)
    local player = getplayer(hit)
    if player then
        player.Character.Humanoid:TakeDamage(115)
    end
end)

leading our final code to be

local Players = game:GetService("Players")

function getplayer(instance)
    for _, v in pairs(Players:GetPlayers()) do
        if v.Character and (instance:IsDescendantOf(v.Character) or instance == v.Character) then
            return v
        end
    end
end

script.Parent.Touched:Connect(function(hit)
    local player = getplayer(hit)
    if player then
        player.Character.Humanoid:TakeDamage(115)
    end
end)

If this answer was helpful, please mark as solution, thx c;