You are unable to login to Gtmhub. You get an Oops!, something went wrong screen:
2. Clicking on View technical details for this error shows a message like:
access_denied Password login via OIDC conformant clients with externally-hosted login pages is unsupported.
The most probable cause for this error is that you are using an incorrect URL to login to Gtmhub. This may happen when you mistype or bookmark an incorrect URL.