Error after updating to 5.6.1

Hello,

Can you check if you are getting any errors in browser console as it might help in debugging the issue further.

This is what i get in console:

JQMIGRATE: Migrate is installed, version 3.3.2
jquery.min.js?ver=3.5.1:2 [Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
send @ jquery.min.js?ver=3.5.1:2
jquery.min.js?ver=3.5.1:2 jQuery.Deferred exception: Cannot read property 'webkit' of undefined TypeError: Cannot read property 'webkit' of undefined
    at HTMLDocument.<anonymous> (https:///wp-content/themes/dt-the7/js/above-the-fold.min.js?ver=3.9.2:1:10282)
    at e (https:///wp-includes/js/jquery/jquery.min.js?ver=3.5.1:2:30005)
    at t (https:///wp-includes/js/jquery/jquery.min.js?ver=3.5.1:2:30307) undefined
S.Deferred.exceptionHook @ jquery.min.js?ver=3.5.1:2
jquery.min.js?ver=3.5.1:2 jQuery.Deferred exception: Cannot read property 'webkit' of undefined TypeError: Cannot read property 'webkit' of undefined
    at HTMLDocument.<anonymous> (https:///wp-content/themes/dt-the7/js/main.min.js?ver=3.9.2:7:10317)
    at e (https:///wp-includes/js/jquery/jquery.min.js?ver=3.5.1:2:30005)
    at t (https:///wp-includes/js/jquery/jquery.min.js?ver=3.5.1:2:30307) undefined
S.Deferred.exceptionHook @ jquery.min.js?ver=3.5.1:2
jquery.min.js?ver=3.5.1:2 Uncaught TypeError: Cannot read property 'webkit' of undefined
    at HTMLDocument.<anonymous> (above-the-fold.min.js?ver=3.9.2:1)
    at e (jquery.min.js?ver=3.5.1:2)
    at t (jquery.min.js?ver=3.5.1:2)
jquery.min.js?ver=3.5.1:2 Uncaught TypeError: Cannot read property 'webkit' of undefined
    at HTMLDocument.<anonymous> (main.min.js?ver=3.9.2:7)
    at e (jquery.min.js?ver=3.5.1:2)
    at t (jquery.min.js?ver=3.5.1:2)

• This reply was modified 3 years, 9 months ago by ita21.

Thanks for sharing. The js error location seems to be pointing to the files:
themes/dt-the7/js/above-the-fold.min.js
themes/dt-the7/js/main.min.js
Can you let us know as to which element from Visual Composer are you using to display the portfolio?

Hello,

I am using portfolio justified grid to display portfolio items,

Hello,

I suspect that the plugin used at your end is WPBakery Page Builder and the portfolio justified grid is a custom element added by the theme.

what should i do to resolve this issue? can you help me?

The Visual Composer Website Builder: https://visualcomposer.com/ and WPBakery Page Builder: https://wpbakery.com/ are two independent products.
You can find more info here: https://visualcomposer.com/docs/faq/visual-composer-website-builder-vs-wpbakery-page-builder/
If the issue is related to standard WPBakery Page Builder elements, then you can open a ticket via: https://support.wpbakery.com/
The issue reported by you is related to “portfolio justified grid” which is not a standard element of WPBakery Page Builder and is most likely added by the theme developer or an add-on. In this case, you can contact the respective theme or add-on developer.