ServerScriptService.Main:24: attempt to call a nil value. how to fix?

the name pretty much says it, how can you fix attempt to call a nil value?

Maybe a screenshot could help me learn of your problem more? Of the script where it’s occuring at and the console output.

Firstly, can you include the entire script? You may be trying to call a nil instance (Meaning, nothing in the value exists/has no data.)

local example = nil

script.Parent.TextLabel.Text = example --Will error out as "game.PLAYER.PlayerGui.TextLabel.Example:2: attempt to call a nil value.

probably because you are not handling the data correctly if you were adding somthing it will not work as there is no data
local value = 0 could help for addition