While customizing your Debutify Shopify theme, you may have renamed it and lost track of the version number.
The theme version number of your Debutify Shopify theme remains in the code, even if the theme name is changed.
How to Check Theme Version
In Shopify admin, under Online store click on Themes.
Click on Actions and click Edit Code.
Scroll to and click on the Config folder.
Click on settings_schema.jason
Look for theme_version to confirm the version number.