After changing hostname - UnicodeError: label empty or too long

did OMV 5.3.10 fresh install. all works nice until i change hostname Then i got error:

"Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; omv-salt deploy run hosts 2>&1' with exit code '1': Traceback (most recent call last): File "/usr/lib/python3.7/encodings/idna.py", line 165, in encode raise UnicodeError("label empty or too long") UnicodeError: label empty or too long The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/sbin/omv-salt", line 136, in <module> sys.exit(main()) File "/sbin/omv-salt", line 132, in main cli() File "/usr/lib/python3/dist-packages/click/core.py", line 764, in __call__ return self.main(*args, **kwargs) File "/usr/lib/python3/dist-packages/click/core.py", line 717, in main rv = self.invoke(ctx) File "/usr/lib/python3/dist-packages/click/core.py", line 1137, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/usr/lib/python3/dist-packages/click/core.py", line 1137, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/usr/lib/python3/dist-packages/click/core.py", line 956, in invoke return ctx.invoke(self.callback, **ctx.params) File "/usr/lib/python3/dist-packages/click/core.py", line 555, in invoke return callback(*args, **kwargs) File "/sbin/omv-salt", line 120, in deploy_run caller = salt.client.Caller(mopts=mopts) File "/usr/lib/python3/dist-packages/salt/client/__init__.py", line 1995, in __init__ self.sminion = salt.minion.SMinion(self.opts) File "/usr/lib/python3/dist-packages/salt/minion.py", line 843, in __init__ opts['grains'] = salt.loader.grains(opts) File "/usr/lib/python3/dist-packages/salt/loader.py", line 784, in grains ret = funcs[key]() File "/usr/lib/python3/dist-packages/salt/grains/core.py", line 2259, in ip_fqdn info = socket.getaddrinfo(_fqdn, None, socket_type) File "/usr/lib/python3.7/socket.py", line 748, in getaddrinfo for res in _socket.getaddrinfo(host, port, family, type, proto, flags): UnicodeError: encoding with 'idna' codec failed (UnicodeError: label empty or too long)"

After that i cant change anything in OMV web interface. Every change makes this error "label empty or too long" but with different text in omv-salt deploy line.

I am getting the same error, running OMV on a Pi 4, version 5.4.2-1

Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; omv-salt deploy run systemd-networkd 2>&1' with exit code '1': /usr/lib/python3/dist-packages/salt/utils/path.py:265: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working if not isinstance(exes, collections.Iterable): raspberrypi: ---------- ID: configure_etc_network_interfaces Function: file.managed Name: /etc/network/interfaces Result: True Comment: File /etc/network/interfaces is in the correct state Started: 18:19:36.931931 Duration: 64.308 ms Changes: ---------- ID: remove_systemd_networkd_config_files Function: module.run Result: True Comment: file.find: [] Started: 18:19:36.997710 Duration: 2.087 ms Changes: ---------- file.find: ---------- ID: remove_empty_systemd_networkd_config_files Function: module.run Result: True Comment: file.find: [] Started: 18:19:37.000081 Duration: 1.609 ms Changes: ---------- file.find: ---------- ID: remove_netplan_config_files Function: module.run Result: True Comment: file.find: ['/etc/netplan/10-openmediavault-default.yaml'] Started: 18:19:37.001958 Duration: 2.071 ms Changes: ---------- file.find: - /etc/netplan/10-openmediavault-default.yaml ---------- ID: configure_netplan_default Function: file.managed Name: /etc/netplan/10-openmediavault-default.yaml Result: True Comment: File /etc/netplan/10-openmediavault-default.yaml updated Started: 18:19:37.004313 Duration: 15.956 ms Changes: ---------- diff: New file mode: 0644 ---------- ID: apply_netplan_config Function: cmd.run Name: netplan apply Result: False Comment: Command "netplan apply" run Started: 18:19:37.022071 Duration: 271.03 ms Changes: ---------- pid: 18161 retcode: 1 stderr: Traceback (most recent call last): File "/usr/sbin/netplan", line 23, in <module> netplan.main() File "/usr/share/netplan/netplan/cli/core.py", line 50, in main self.run_command() File "/usr/share/netplan/netplan/cli/utils.py", line 130, in run_command self.func() File "/usr/share/netplan/netplan/cli/commands/apply.py", line 43, in run self.run_command() File "/usr/share/netplan/netplan/cli/utils.py", line 130, in run_command self.func() File "/usr/share/netplan/netplan/cli/commands/apply.py", line 93, in command_apply stderr=subprocess.DEVNULL) File "/usr/lib/python3.7/subprocess.py", line 347, in check_call raise CalledProcessError(retcode, cmd) subprocess.CalledProcessError: Command '['udevadm', 'test-builtin', 'net_setup_link', '/sys/class/net/lo']' returned non-zero exit status 1. stdout: Summary for raspberrypi ------------ Succeeded: 5 (changed=5) Failed: 1 ------------ Total states run: 6 Total run time: 357.061 ms

OMV 5.4.3-1. nothing changed. still same error. cant make changes to OMV on GUI.