When installing the demo data, problems may occur in the following cases: All required plugins that come with the theme are not installed Not configured PHP on the server, be sure to increase max_execution_time, memory_limit and max_input_vars. (see the faq for Hosting requirements for installing and using the products) The version of PHP on the server is not compatible with the theme, you can try changing the version to 7.0 or 7.2 There is a conflict of installed plugins and themes, you can try to disable unnecessary plugins before importing demo data There are other JavaScript errors, you need to open the F12 developer console and see the text of the error The import script is incompatible with the browser, use Firefox instead of Chrome or vice versa Adguard advertising blocker can block execution of JS scripts, AdGuard should be temporarily disabled Browser addons can interrupt JS scripts, you need to disable browser add-ons and try again. Firewall blocks the execution of scripts on the page, temporarily disable the antivirus, especially if you work on a local server Disabled XML/XML Reader extension in PHP settings