Argo Tunnel 1226 error?

I am currently unable to access my local server using the Argo Tunnel. Access using localhost:3000 works fine and I have not changed anything for quite some time. When I go to the Traffic Tab in Cloudflare and try to turn Argo off I get the following error…

status: 500, message: failed to update subscription in billing backend: (422) - Error message received from Http Server, Code 422: No message available; Caused by: Error message received from Http Server, Code 422: No message available (Code: 1226)

Is this my error or Cloudflare? Cloudflare shows no issues on their status page.

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Thanks for the help - appreciate it!!! It must have been a Cloudflare issue as the Tunnel started working a few minutes ago. The Argo Tunnel has been extremely stable for a long time but recently it has had some hiccups.