Hello,

We checked your website and see that there is something wrong with all AJAX requests there. We tried to install any plugin but we always get this error. Note that we tested with the default theme so this error is not related to our theme at all. You need to solve this problem first and then you will be able to import our dummy content https://monosnap.com/file/fUOizfaQ8VT5Oc5cjuqKjaVJuoDPlE

Kind Regards