My first Script... Help a noob please

Hi, I'm trying to make my first script but it don't work. I have a xiaomi mimax 3 with screen resolution of 2160x1080 and maybe this can cause some problem.
I highlighted the first region for check if is right and it seams to be correct., but the script dont click anything
I'm new of this language so please be patient with me

Here there are the screenshots of errors (two different errors depending on the use gems choice in user interface)




The script should click "battaglia" and then chose and opponent with 300 points or refresh the opponent list if not 300 (in future I would like to allow user to insert manually the minimum power level for choosing opponent). The script should also check if equipment is broken (rotto) and if so switch Equipment starting from nature element, then fire, water, light and death.

The script should run and cycle until energy is over or if user check use gems using gems to refill energy and fight until script stopped.

here is the script with image folder:
drive.google.com/file/d/1tYYlgL7BLADZhwPAGE4_rE0sULO-0_qm/view?usp=sharing



errors and pictures of what it should do:
drive.google.com/drive/folders/1KwAtg6IWF4N6do-arf6VqXBn6oCJej4g?usp=sharing





my script:


----- DH5 Arena Script ------

immersive = false

setAutoGameArea = true

pcall (autoGameArea, setAutoGameArea)

scriptDimension = 2160

Settings:setScriptDimension(true, scriptDimension)

Settings:setCompareDimension(true, scriptDimension)

rotto = 0

elemento = 1

usagemme = false



---regions---

   battleRegion = Region(1460, 900, 500, 120)

   rottoRegion = Region(870, 121, 120, 120)

   coronaRegion = Region(1759, 300, 120, 120)

   treRegion = Region(1840, 300, 120, 120)

   aggiornaRegion = Region(318, 970, 200, 104)

   okRegion = Region(1170, 810, 400, 110)

   W1Region = Region(1630, 970, 340, 120)

   rosaRegion = Region(780, 960, 150, 150)

   elementRegion = Region(800, 330, 540, 540)

   WRegion = Region(1500, 930, 400, 200)

   VSRegion = Region(910, 360, 400, 220)

   SRegion = Region(910, 360, 400, 220)

   saltaRegion = Region(1600, 870, 400, 120)

   corona2Region = Region(880, 300, 200, 200)

   Vregion = Region(1880, 868, 300, 300)

   continuaRegion = Region(1600, 930, 400, 120)

   gemmeRegion = Region(1170, 810, 400, 110)



function userInterface()

   dialogInit()

   addTextView("Punteggio Minimo: ")

   addEditText("minEnemyPower", "300")



   newRow()

   addTextView("")

   newRow()

   addTextView("usa Gemme")

   addCheckBox("usagemme", "Usa Gemme per refill", false)

   addTextView("  ")

   dialogShow("Settaggi Script Arena")

end



function checkPower()

   rosaRegion:wait("rosa.png")

   Settings:setCompareDimension(true, scriptDimension)

   local r = Region(1470,450,120,50)

   local preSimilar = Settings:get("MinSimilarity")

   Settings:set("MinSimilarity", 0.8)

   local p = numberOCR(r,"power")

   Settings:set("MinSimilarity", preSimilar)

   Settings:setCompareDimension(true, 640)

   --    Settings:snapSet("OutputRegImg", false)

   return (p >= 1300)

   end



function rotto()

   rosaRegion:existsClick("rosa.png")

   if elemento == 1 then

       elementRegion:existsClick("foglia.png")

       wait(2)

       rotto = 0

   elseif elemento == 2 then

       elementRegion:existsClick("fuoco.png")

       wait(2)

       rotto = 0

   elseif elemento == 3 then

       elementRegion:existsClick("acqua.png")

       wait(2)

       rotto = 0

   elseif elemento == 4 then

       elementRegion:existsClick("luce.png")

       wait(2)

       rotto = 0

   else

       elementRegion:existsClick("morte.png")

       wait(2)

       rotto = 0

   end



end

-- ==========  main program ===========



do userInterface() end

while (true) do

battleRegion:highlight()

battleRegion:existsClick(Pattern("Battaglia.png"):similar(0.8))

battleRegion:highlightOff()



if (rottoRegion:exists("rotto.png", 3)) then

   rotto = 1

else

   rotto = 0

end

function punti()

coronaRegion:wait("corona1.png",15)



   if (treRegion:exists("300.png")) then

       treRegion:click("300.png")

       else

       wait (2)

       aggiornaRegion:click("aggiorna.png")

       okRegion:existsClick("ok.png")

       do punti()

   end

   end

   end

W1Region:existsClick("W1.png")

if (usagemme == true) then

   gemmeRegion:click("gemme.png")



end

do checkPower() end

if (not checkPower()) then

   elemento = elemento + 1

  do rotto()

    end

end



if (rotto == 1) then

   do rotto() end

   end



WRegion:existsClick("W.png")

VSRegion:existsClick("VS.png")

wait(2)

SRegion:click("S.png")

saltaRegion:existsClick("salta.png")

saltaRegion:click("salta.png")

corona2Region:click("corona2.png")

wait(2)

Vregion:click("V.png")

continuaRegion:existClick("continua.png")

end