In the beginning of instalation(selection of components for installation) I unchecked option Import Widgets. I installet skin without that content.
I also noticed that you can try to avoid this error by installing the skin locally on your computer (via XAMPP), and then using the “Duplicator” plugin to transfer the content to a web hosting. I think that this error can be circumvented in this way without losing the content of the page (widgets).
In any case, the problem is generated by the widget installation option, as I mentioned, and it needs to be corrected.
