Lua Ultimate healing doesn't work in Linux

[TibiaGameHost]

Ultimate healing (exura vita)

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_HEALING)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_MAGIC_BLUE)
setCombatParam(combat, COMBAT_PARAM_AGGRESSIVE, false)
setCombatParam(combat, COMBAT_PARAM_DISPEL, CONDITION_PARALYZE)

function onGetFormulaValues(cid, level, maglevel)
	local min = ((level/5)+(maglevel*6.79)+42)
	local max = ((level/5)+(maglevel*12.89)+90)
	return min, max
end

setCombatCallback(combat, CALLBACK_PARAM_LEVELMAGICVALUE, "onGetFormulaValues")

function onCastSpell(cid, var)

	return doCombat(cid, combat, var)
end

Among other spells heal yourself, do not work, why?