[HELP]creating a nightmarefuel-filled weapon

[fullchaos]

I want to create a weapon that will refuel with horror fuel, for me it turned out to be more difficult than I expected (I am a beginner DST mod maker)
I have a spellcaster in my weapon and it would be great if someone could help me.

local function guitarspell(inst, attacker, target)
    if not inst.components.fueled:IsEmpty() then
      inst.components.fueled:DoDelta(-TUNING.TINY_FUEL)
     end
 end

when the value is "guitarspell" - the weapon does not perform its function, although the percentage of durability is spent

What can be wrong?