After uninstalling the app, you should follow these steps:
Open Themes section on the admin panel of your web store (Online Store → Themes);
Find Theme from the list which will be used with our installed app.
Click Actions → Edit Code.
Find
theme.liquidfile under Layout section and delete the following code:
{% render 'spurit_occ3_theme_snippet' %}In the Snippets section delete the file:
spurit_occ3_theme_snippet.liquid