Do you get the following message:
Your Shopify subscription is currently limited to $ XXXX amount. Upgrade your Shopify subscription to increase the number of profiles you can have
Within shopify, you have a billing profile. For this, you give an app (such as Reloadify) permission to bill up to a certain amount. So when the number of profiles increases and the amount increases, such a notification is posted.
In this case, click “change payment method” in Reloadify. You will then be redirected to Shopify itself to adjust the billing profile there. After that, you can continue in Reloadify again.