Unable to initialise device

[jehoshua7]

I have been using jmtpfs successfully on Kubuntu 19.10. Now today it failed to mount

Device 0 (VID=04e8 and PID=6860) is a Samsung Galaxy models (MTP).
error returned by libusb_claim_interface() = -6LIBMTP PANIC: Unable to initialize device
terminate called after throwing an instance of 'MtpErrorCantOpenDevice'
what(): Can't open device
Aborted (core dumped)