Odd problem with radio presets - how ro delete??

Hi;
I have a station in my presets ("Radio/Eigene Voreinstellungen"), which no longer streams and I therefor would like to delete it.
Here is the odd thing:
This station is only listed within LMS - not when I login to tunein itself!?
But as soon as I give LMS my tunein username, it lists this station. (Even for a from scratch LMS instalöation)

-> How do I delete Radio (TuneIn) presets within LMS?
-> Any other idea how to delete this preset (which does not show up when I log in to the TuneIn Website)