Checkout System disabled: Checkout is disabled

  1. We have already purchased a subscription plan.
  2. Still while clicking on the More payment options but shows some checkout is currently unavailable and technical problems. error show (seen in 2nd screenshot).
  3. Checkout page shows “Checkout System disabled: Checkout is disabled.” message as seen in 1st screenshot.
  4. Already in Settings > Payments > Shopify Payments filled Credit card details and PayPal Express Checkout details.
  5. Settings > Payments > No Manual Payment Method Selected.

Why we are getting such message? Please show us proper steps to come out.

Thanks…