Just trying to add my Mapbox style to QGIS. Doing everything according manual https://www.mapbox.com/help/mapbox-arcgis-qgis/
This is a working link, you can check it
but get this message:
Instead of the capabilities string that was expected, the following response has been received:
Could not get WMS capabilities: error occurred while parsing reference at line 9 column 337 This is probably due to an incorrect WMS Server URL.