Tab Function and Post Slider not working

Hello Kriesi Folks,

Thank you for an awesome theme!
I am having an issue with the tab element not having the icons clickable. They have content and are set up normally and were working fine 3 weeks ago but not anymore.
The Post slider feature which is within one of the tabs is not displaying any of the images from the posts. This was also working before but no longer working.
The link to the test page I created and images provided below.

THANK YOU