Jack error when useing ardour

hello
when i use ardour jack has unkown error and when i stop jack and chenge output / input device setting
jack runs for a few min & again return error (set & error in below scrshotz)

What version of Ardour is this? Where did you get it? What is going on in the session?

Ardour 6.0.74
“The Pearl”
(rev 6.0-74-gc7edc28383)
Intel 64-bit
i compile from github source in avlinux 64bit

You would need to very that the same issue occurs with the free/demo build from nightly.ardour.org before we look any deeper.