> ## Documentation Index
> Fetch the complete documentation index at: https://docs.minstroem.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshooting

> Help with keys, addresses, and missing data.

## My key is rejected

Check your `Authorization: Bearer …` header.

* `invalid_token`: check that you copied the complete, current key.
* `credential_expired`: replace the key in iOS.
* `plus_required`: restore an active Plus subscription.
* `entitlement_unavailable`: subscription verification is temporarily unavailable; try again later.

If you have lost your key, replace it in iOS and update your integration.

## I can't find my address

[List your addresses](/consumer-api/reference/list-addresses) and use an `id` from that response. Check your addresses in the app if the list is empty or an address is missing.

## A capability is unavailable

Check the address's [capability flags](/consumer-api/addresses) and its meter connection in the app. After making changes, list your addresses again.

## Data is missing

Try a period for which you can see readings in the app. A response may cover only part of the requested period, and an empty result can be valid.

Keep missing readings separate from zero readings. See the [example](/consumer-api/data-interpretation#missing-is-not-zero). Forecast availability can also vary; check again later.

## Requests fail intermittently

For `429`, wait at least the number of seconds in `Retry-After`. For temporary `500`, `502`, or `503` errors, retry a few times with increasing delays, then stop. Repeated attempts can use up your request allowance.

Contact [engberg@minstroem.app](mailto:engberg@minstroem.app) with the endpoint, UTC time, status, error code, and `X-Request-ID`. Keep your key and personal data out of the message.