Hello @Zuzana !
If your store’s settings don’t meet an app’s installation requirements, then the app is marked as Not compatible in the Shopify App Store. On the app listing page for an incompatible app, you can see which installation requirements don't meet your store's settings. You can't install the app unless those settings change. On the search and category pages, double check your changes make sure you did it correctly you can hide incompatible apps by selecting See only compatible apps.