Domain not working

My project ID is 4aca03c7-05aa-4152-9353-cb472eb81fe9 The default railway domain for the deployed service -> https://candypay-checkout-production.up.railway.app does not work [screenshot attached] while the custom-added domain -> https://checkout-api.candypay.fun/ work I'm using both in different places, how to ensure both are up?

Solution:

probably caching issue

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