Before you start installing the theme, please make sure your server has the minimum resources required for the theme.
The easiest way to install the theme is through the WordPress interface. Log in to your site and then continue to the Appearance - Themes section.
Then click Add New, then type componentz in the search box on the right side.
Mouse over the preview image to see the Install button, which will allow you to install the theme on your site.
If you no longer want to use the theme, you can remove it in the Appearance - Themes section. First select and activate a different theme, such as Twenty Twenty. Then click the componentz theme screenshot, and then click Delete.