Troubles using avia lay out builder in enfold child theme (dutch version)

Hi,

I don’t know what’s wrong but different elements of the avia lay out builder (dutch version) are not working. For example the contact form: I cannot change it to my own preferences. When I try to add other elements, they disappear. I cannot press ‘save’, it is not reacting. I tried in firefox as well as in Chrome, but it’s the same problem.
Also troubles trying to install the content slider: when I add content and press ‘save’, the slide disappears.
I didn’t try all the other options yet, but I guess there might be troubles with other content elements as well.

I am using the dutch version of the enfold child theme.

Another issue: on the mobile version, the button of the shopping cart (woocommerce) is overlapping my logo. Something I can do about that?

Thank you,
Tine