Missing Sections after Restore

Hi

I moved my website to another server (same domain).

Everything worked perfect apart from the sections I used.

No section is restored.

When I disable the sections in the top right corner I can see the content of the sections as text in my post ...but I have to setup all sections again now.

I used the plugin "Duplicator" to move the website.

I think that is also the tool you recommend or?

What could it be? Do I need to do anything special to keep them?

Thanks
Uwe