---
title: Troubleshoot
image: https://developers.cloudflare.com/core-services-preview.png
---

[Skip to content](#%5Ftop) 

Was this helpful?

YesNo

[ Edit page ](https://github.com/cloudflare/cloudflare-docs/edit/production/src/content/docs/billing/troubleshoot/index.mdx) [ Report issue ](https://github.com/cloudflare/cloudflare-docs/issues/new/choose) 

Copy page

# Troubleshoot

* [ Billing error reference ](https://developers.cloudflare.com/billing/troubleshoot/error-reference/)
* [ Troubleshoot invoices ](https://developers.cloudflare.com/billing/troubleshoot/troubleshoot-invoices/)
* [ Resolve a payment failure ](https://developers.cloudflare.com/billing/troubleshoot/troubleshoot-failed-payments/)
* [ Resolve the zone cannot be upgraded error ](https://developers.cloudflare.com/billing/troubleshoot/resolve-zone-cannot-be-upgraded/)
* [ Resolve "you cannot modify this subscription" ](https://developers.cloudflare.com/billing/troubleshoot/resolve-you-cannot-modify-this-subscription/)
* [ Resolve "cannot remove payment method" ](https://developers.cloudflare.com/billing/troubleshoot/resolve-cannot-remove-payment-method/)

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/billing/","name":"Billing"}},{"@type":"ListItem","position":3,"item":{"@id":"/billing/troubleshoot/","name":"Troubleshoot"}}]}
```