Crypotomator file management on Android TV mediaplayer

I have installed Cryptomator on an Android mediabox (Dune HD Premier 4K pro with Android TV 11 OS) for use on local storage and internal HDD. Installation by using the APK download version 1.10.4 and a purchased license.
When trying to select a local storage location, clicking on the + symbol, the massage appears: No file management found which supports opening of folders. Tried several file management apps, no succes
Are there any compatible Android apps for media boxes which can be used to work with Cryptomator on local storage, or is Cryptomator not supported on these kind of android boxes?