If you have problems during the import of the dummy content maybe there are memory problems or timeout server settings. Please ask to your server provider to make a check.
If you copy and paste our file content nd-shortcodes-export-part-x.txt in your theme options import textarea and you don’t receive any errors, or you see the error message “Empty textarea” it means that your server does not allow you to import a large number of options in a single operation. To solve this problem you can contact your hosting provider or import the file divided into several parts. You can follow these steps to do it:
Example for 4 options that you can import in your textarea:
Note : Remember that for any problem related to import and export content you need to contact your hosting provider because the theme does not limit any kind of import or export procedure.