Hey, if you're using the Gokwik COD app, then if you build a flow on Spur to Convert COD orders to prepaid, you won't be able to edit or cancel the COD orders created via that app.
The app does not support this currently, to get your flows back to working, we recommend you use other COD apps in the Shopify app store.
Here's a list which compares a few
https://apps.shopify.com/payflow (best value, built for Shopify)
https://apps.shopify.com/cash-on-delivery-fee ($30, most stable, massive reviews)