Where to get demo content files to download a demo theme

Good afternoon, I tried to import a demo theme using the Catch Themes Demo Import plugin, but I got a lot of errors after the import is complete, the site does not look like a demo pro version. On your website, I read that demo content files are needed and I can get them by requesting them on the forum, which I do) I need an XML file, WIE or JSON file, DAT file. Thank you in advance. This is how my site looks at the moment after importing the demo theme redbee.uz