Problem with Sonos&Chromecast

[user-removed]

Plan

Premium

Country

Germany

Device

Samsung S10

Operating System

Android 10

My Question or Issue

I recently set a device password (always used Facebook as my login but I want to delete my Facebook account) and since then I'm unable to use Spotify connect to play music on my Sonos System or on my Chromecast Audio.. 

It shows the "connecting" notification but nothing happens..

I'm also unable to play from the Spotify from the Sonos app.

Already logged out, logged in, changed password, disconnect everything from wifi, de/reinstalled Spotify