How can I get back to the DEMO page again?

Hello Shapely team,
I did without purposing it, while I deleted photo’s from the DEMO page, lost all completely… now I have got only BLOG page left, but I would like to restart all again from the DEMO page!
But this option is not any more available in the “recommended actions”. Please how can I go back to the DEMO look like page again?
Beste greetings, H.K. Maeda

Hey there

Try to start it again, reset your WordPress installation and try to import the demo again