> ## Documentation Index
> Fetch the complete documentation index at: https://plain-docs-orca-916-agent-docs-restructure.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# CustomerCardInstanceError

> A customer card instance that failed to load. Inspect `errorDetail` to determine why: the card API returned a non-200 status, timed out, returned an invalid body, or did not include the requested card key.