Please follow the steps below
How to Un-Install shopify app on your store?
Navigate to your store admin interface
Click at Apps -> App and sales channel settings
In the Apps overview locate "Ci Humanized Recommendations"
Click at Uninstall
In the display window, please provide feedback for deleting (optional) and confirm deletion by clicking at Delete button
Uninstallation is completed
Note: All dependencies from your store will be removed immediately and your data as per our Data privacy agreement