Port dev/ttyAMA0 does not exist

Hi,

can anyone help me out here? Still facing the issue “Port dev/ttyAMA0 does not exist” with my razberry.
The port seems to exist
ls -la /dev/ttyAMA0
crw-rw-rw- 1 root dialout 204, 64 Apr 3 01:27 /dev/ttyAMA0
These are the members of group dialout:
grep dialout /etc/group
dialout:x:20:pi,openhab

and group tty
grep tty /etc/group
tty:x:5:openhab,pi
What am I still missing here?