Spotify connect2 connection lost

i use Volumio on Rpi 2 and Tinkerboard 2 (via LAN, Volumio App on Iphone/Ipad)

With Rpi 2
Volumio Spotify Connect (1.6.1)
works fine

With Rpi 2 an with the new Tinkerboard
Volumio Spotify Connect2 (16.11.2018)
stops playing after some (3…10) songs.
Volumio Connect 2 is not longer available on the List of Devices
Radio Paradise and NAS are possible
… a Restart is the only way

I don1t find the (old) Volumio Spotify Connect (1.6.1) -Version on the list of Plugins