works for reinstallation

A great App, I thought. Approximately 300 songs in my list, then suddenly all the songs were gone. I synchronized daily, I was hoping for a quick recovery meuiner songs. Unfortunately, no login is possible for me. Then I wrote to the support, but received no reply to this day!
Son then had the brilliant idea: throw down app and reinstall it: Now works even logging in and I was able to recover all my songs. So I change my vote and give full points.