I tried to install Lutris on my desktop but appear error:

Viet@Viet-PC:~$ sudo add-apt-repository ppa:lutris-team/lutris
[sudo] password for Viet: 
Verification successful
Traceback (most recent call last):
  File "/usr/bin/add-apt-repository", line 95, in 
    sp = SoftwareProperties(options=options)
  File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 109, in __init__
    self.reload_sourceslist()
  File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 599, in reload_sourceslist
    self.distro.get_sources(self.sourceslist)  
  File "/usr/lib/python3/dist-packages/aptsources/distro.py", line 91, in get_sources
    raise NoDistroTemplateException(
aptsources.distro.NoDistroTemplateException: Error: could not find a distribution template for Deepin/beige
Viet@Viet-PC:~$ sudo apt update
Hit:1 https://dl.google.com/linux/chrome/deb stable InRelease
Hit:2 https://community-packages.deepin.com/beige beige InRelease
Hit:3 https://community-packages.deepin.com/driver driver InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
Viet@Viet-PC:~$ sudo apt install lutris
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package lutris

Can anyone help me? Thanks.