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Hello everyone, I have a problem that I could not solve on:
https://puglisishop.com
In some products, at the add-cart button are missing the plus and minus buttons and when I click on the button redirects me to the cart you want. I tried to do tests by changing the cooke class with

$ this -> _ name = 'PrestaShop3 -'. md5 (($ this -> _ standalone? '': _PS_VERSION _). $ name. $ this -> _ domain);

but I do not think this is the problem.

In some product, where the buttons are present, if I click on inspection I see this code:

<div class = "quantity-wrapper">
          
        <div class = "product-quantity">
          <div class = "qty">
            <span class = "control-label"> Quantity </ span>
            <div class = "input-group bootstrap-touchspin"> <span class = "input-group-addon bootstrap-touchspin-prefix" style = "display: none;"> </ span> <input type = "text" name = "qty" id = "quantity_wanted" value = "1" class = "input-group form-control" min = "1" air-label = "Quantity" style = "display: block;"> <span class = " input-group-addon bootstrap-touchspin-postfix "style =" display: none; "> </ span> <span class =" input-group-btn-vertical "> <button class =" btn btn-touchspin js-touchspin bootstrap-touchspin-up "type =" button "> <i class =" touch-ups-up-touch-up "> </ i> </ button> <button class =" btn btn-touchspin js-touchspin bootstrap-touchspin-down "type =" button "> <i class =" touch-pin-down material-icons "> </ i> </ button> </ span> </ div>
          </ Div>
        </ Div>
      
      </ Div>

can look the image1
 

and the button add to cart works perfectly here an example:
https://puglisishop.com/it/trolley-medio/548-1651-samsonite-linea-scure-trolley-medio-rigido-10u001.html#/211-colori-dark_blue

If instead I go on another product, configured exactly the same way for example:
https://puglisishop.com/it/trolley-cabina-4-ruote/549-1652-samsonite-linea-scure-trolley-cabina-rigido-10u003.html#/211-colori-dark_blue

and many others, clicking on inspection at the height of the amount I have this code:

<div class = "quantity-wrapper">
          
        <div class = "product-quantity">
          <div class = "qty">
            <span class = "control-label"> Quantity </ span>
            <input type = "text" name = "qty" id = "quantity_wanted" value = "1" class = "input-group" min = "1" air-label = "Quantity">
          </ Div>
        </ Div>
      
      </ Div>

can look the image2

which is totally different and when I click it does not add anything and redirect me to the empty cart!

I tried to uninstall the modules, disable the ajax functionality of the cart, and also to change the theme and test everything with the classic but gives me the same problem.
What can be caused by?
The products in the backend are configured in the same way, there is nothing different.
I do not understand why in some products it does not generate the correct html and in others it does.
Thanks to those who have the patience to help me

Piero