Wizard will ask you to install theme required plugins. Click on "Begin activating plugins":
Then choose "Activate" and "Apply" options in Bulk Action in order to activate the plugins:
Read welcome message and click “Let`s go!”:
Default Content. By clicking “Continue” setup wizard will import all demo data – pages, posts, portfolios and media files. Please note that import process will take time needed to download all attachments:
Theme customization. Here you can read information about widgets and child theme. Click “Continue”:
That’s all! Theme required plugins were installed and demo content was imported.