can I drop a mp3-file to my site? whenever I try that I get this error: "Fehler SyntaxError: JSON.parse: unexpected end of data at line 1 column 1 of the JSON data"
It should be possible to upload mp3 files, but perhaps you get an error for other reasons like file size or something else? When you upload mp3 content > custom > audio, it becomes part of the audio player playlist. Glad you solved it.