Hello,
You’re welcome!
1. I am glad that you sorted out.
2. You do not need Screets API Key, the plugin should work without it.
3. On my test site VC works without these problems. Try to disable all 3-rd party plugins (means the plugins that are not included in the theme package are not in the list of required plugins) and then check. Also, check console on your site while you edit page and check if you have any errors here.
Let us know if you need any further assistance.
Regards