Make sure that you installed the latest version of the theme – 7.2.2
In case if automatic plugin installation fails (as a rule it is because of your server settings), you can install them manually via your Dashboard: Plugins > Add New > Upload Plugin > Browse plugins archives. Or via FTP, by uploading and extracting the plugin zip files into wp-content/plugins folder. You can find the zip files for plugins installation here – https://www.8theme.com/downloads/
Make sure you have checked all the server requirements before the installation https://xstore.helpscoutdocs.com/article/60-xstore-theme-requirements
