Errors when starting on a fresh Ubuntu x64 installation

[szabolcszijarto]

saby@VBU-OpenPlotter:/var/log$ openplotter-sdr-vhf
Error getting raspberry model: [Errno 2] No such file or directory: '/sys/firmware/devicetree/base/model'
Error getting raspberry model: [Errno 2] No such file or directory: '/sys/firmware/devicetree/base/model'
Failed to get unit file state for openplotter-rtl_ais.service: No such file or directory
Failed to get unit file state for dump1090-fa.service: No such file or directory
Failed to parse bus message: Invalid argument
Traceback (most recent call last):
File "/usr/bin/openplotter-sdr-vhf", line 11, in
load_entry_point('openplotterSdrVhf==2.1.1', 'console_scripts', 'openplotter-sdr-vhf')()
File "/usr/lib/python3/dist-packages/openplotterSdrVhf/openplotterSdrVhf.py", line 1213, in main
MyFrame().Show()
File "/usr/lib/python3/dist-packages/openplotterSdrVhf/openplotterSdrVhf.py", line 145, in init
self.pageSystemd()
File "/usr/lib/python3/dist-packages/openplotterSdrVhf/openplotterSdrVhf.py", line 503, in pageSystemd
self.set_listSystemd()
File "/usr/lib/python3/dist-packages/openplotterSdrVhf/openplotterSdrVhf.py", line 528, in set_listSystemd
output = subprocess.check_output(command.split(),universal_newlines=True)
File "/usr/lib/python3.8/subprocess.py", line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "/usr/lib/python3.8/subprocess.py", line 512, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['systemctl', 'show', 'openplotter-rtl_ais', '--no-page']' returned non-zero exit status 1.

saby@VBU-OpenPlotter:/var/log$ uname -a
Linux VBU-OpenPlotter 5.8.0-41-generic #46~20.04.1-Ubuntu SMP Mon Jan 18 17:52:23 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux