Can't edit Layer Slider!

Hello, I’ve got an issue in editing layer slider wp after update the theme.
I can’t edit my layer slider or even when I create a new slider. It always show up like my attachment picture. What is happening?
At first, I think it’s because the Layer Slider has an update. But I can’t update because my license key is not working.
Could you help me with this problem? Is there any license code? Or it’s just another bug?
Thank you.