problem with filter

Hi,
I hope you can help me.

Practically when I carry out a search with attribute filters I find 2 errors.

The first is that even if an item is out of stock it is counted (appears in brackets on the left) , then if you click it doesn’t show you anything because it is actually out of stock. https://cremoninibike.com/categoria-prodotto/biciclette/?swoof=1&pa_modello=enviliv&really_curr_tax=126-product_cat

The other error is that if I click on the PROPEL model (in addition to giving me the same error – so it tells me that there are 11 but actually if you click it only shows you 9 – the other 2 models are sold out) and then go to filter by size there is a bug of some kind because it says 11 for each size but obviously it’s not true.https://cremoninibike.com/categoria-prodotto/biciclette/?swoof=1&pa_modello=propel&pa_taglia=xs&really_curr_tax=126-product_cat

Could you help me?

The page I need help with: [log in to see the link]