If Currency Converter Box does not work, you can refer some reasons below:
Reason 1: App Status: OFF
Before installing, you must enable App to activate and choose currencies to convert on your online store. You should remember that this App will not work when OFF. If you can not installed successfully, you should check this first reason.
Reason 2: Don't click "Save Setting"
You should make sure that you click "Save Setting" before moving to the next steps. Click "Save Settings" to save your process or everything will disappear. In particular, if you change any issues on our dashboard, you must press "Save Setting" to save them. We will not be able to change anything until you save them.
Reason 3: Don't paste codes in Shopify settings
To this app work and change currency, you must copy and paste codes into Shopify settings. How to copy and paste codes? You can follow this instruction to do this step.
If you still can't install, you can contact us for assistance via firstname.lastname@example.org. Good luck!