Error Unsupported Namespace

[BerlinBased]

I got this error after configuration, which runs until the end with positive statement:

Logger: custom_components.sonos_cloud Source: custom_components/sonos_cloud/init.py:117 Integration: Sonos Cloud (documentation, issues) First occurred: 22:09:29 (30 occurrences) Last logged: 22:36:43

Requesting devices failed (404): {"errorCode":"ERROR_UNSUPPORTED_NAMESPACE","reason":"Unexpected error"}