Runtime on xenoarch gun.

Created by: Probe1

runtime error: code/modules/projectiles/guns/energy.dm:29:Assertion Failed: power_supply.maxcharge > 0
proc name: update icon (/obj/item/weapon/gun/energy/update_icon)
  source file: energy.dm,29
  usr: Jakob Jakobsen (/mob/living/carbon/human)
  src: Ancient gun (/obj/item/weapon/gun/energy/laser)
  call stack:
Ancient gun (/obj/item/weapon/gun/energy/laser): update icon()
the recharger (/obj/machinery/recharger): attack hand(Jakob Jakobsen (/mob/living/carbon/human), "icon-x=15;icon-y=15;left=1;scr...")
Jakob Jakobsen (/mob/living/carbon/human): UnarmedAttack(the recharger (/obj/machinery/recharger), 1, "icon-x=15;icon-y=15;left=1;scr...")
Jakob Jakobsen (/mob/living/carbon/human): ClickOn(the recharger (/obj/machinery/recharger), "icon-x=15;icon-y=15;left=1;scr...")
the recharger (/obj/machinery/recharger): Click(Asteroid (152,181,5) (/turf/unsimulated/floor/asteroid/plating), "mapwindow.map", "icon-x=15;icon-y=15;left=1;scr...")

00:50:01 Runtime detected
code/modules/projectiles/guns/energy.dm:29:Assertion Failed: power_supply.maxcharge > 0 at energy.dm:29

runtime error: code/modules/projectiles/guns/energy.dm:29:Assertion Failed: power_supply.maxcharge > 0