Sports Club Pro Slider

I can only see the slider when in incognito on Chrome. Cannot see it on plain Chrome. Also, I get the following errors in my Widgets and cannot save any changes I make. The "kocuj_sitemap_plugin__widget" block was affected by errors and may not function properly. Check the developer tools for more details. The "custom_html" block was affected by errors and may not function properly. Check the developer tools for more details. Thank you, https://michelleexley.com/