Stamina Lua Error

[Valania]

What does this mean? It doesn't seem to effect the stamina, but it still shows me an error: Screenshot (http://prntscr.com/orvhx6)

 

[Infernum]

nextUseStaminaTime isn't defined, you either have an error in your lib causing global.lua to not load or you deleted this code from your global.lua:

if not nextUseStaminaTime then
    nextUseStaminaTime = {}
end