Slider pagination sometimes return an error on console

Hi,

I’m using wp-property version 2.2.0.1 on a WordPress 4.7.2.
On the “all properties” page I’m using the pagination set on type “Slider”.
Sometimes, while navigating through the pages, the pagination doesn’t works and return an error on console:

File: property_overview.js

Uncaught TypeError: Cannot read property 'display' of null
    at Object.success (property_overview.js?ver=4.7.2:335)
    at i (jquery.js?ver=1.12.4:2)
    at Object.fireWith [as resolveWith] (jquery.js?ver=1.12.4:2)
    at y (jquery.js?ver=1.12.4:4)
    at XMLHttpRequest.c (jquery.js?ver=1.12.4:4)

Page: https://www.immobiliaresaturno.it/i-nostri-immobili/

Any Idea?

Thanks

Manuel