Uninstalling ModeMagic does not remove the labels that you had applied on your product images.
To remove the labels,
1. You can re-install the app from here - Install ModeMagic.
2. Once installed, launch the app - Launch ModeMagic.
3. Select the product image from which you want to remove the label and select the 'Undo Sticker' option.
4. Click on 'Remove Sticker' button to apply the changes.
If this does not work for you, check if you have modified the sticker-ed image by any chance.
If you still run into any issues, ping the ModeMagic team from the in-app chat or drop us an email at [email protected].