First of all sorry about the late reply. I am still working through the holiday break requests.
Were you able to install Spotify Connect regularly without interruption?
Which Raspberry Pi B is your model? B+, 2B, 3B?
What more information link are you referring to? On top there should only be links to librespot’s github and mherger’s Spotty in the text field.
Please check the other parameters of your player. Make sure the last there are empty and that your sound card is selected.
Also make sure that both Squeezelite and Shairport are inactive.