Anbox does not start. Please help

I click anbox in the menu and I get a starting screen but it goes a way after a while and it seems like nothing happens. I’m pretty sure I followed all the indications.

Kernel: 5.10.36-2-MANJARO

I have the following installed:

$ sudo pacman -Q | grep anbox
anbox-git 1:r1346.7d1930c-1
anbox-image 1:2018.07.19-1

I did this:

mkdir /dev/binderfs
mount -t binder binder /dev/binderfs

Added this to /etc/fstab :

binder    /dev/binderfs    binder    nofail    0    0

Also did this:

systemctl enable anbox-container-manager.service
systemctl enable systemd-networkd anbox-container-manager

I did this later on as well:

systemctl --user enable --now anbox-session-manager.service

My /dev looks like this:

$ ls -1 /dev/{ashmem,binder}   
ls: cannot access '/dev/binder': No such file or directory
/dev/ashmem

$ ls -1 /dev/{ashmem,binderfs}
/dev/ashmem

/dev/binderfs:
binder
binder-control
hwbinder
vndbinder

Running anbox session-manager returns the following:

[ 2021-05-22 08:12:23] [client.cpp:48@start] Failed to start container: Failed to start container: Failed to set config item lxc.group.devices.deny
[ 2021-05-22 08:12:23] [session_manager.cpp:164@operator()] Lost connection to container manager, terminating.
[ 2021-05-22 08:12:23] [daemon.cpp:61@Run] Container is not running
terminate called after throwing an instance of 'boost::wrapexcept<boost::exception_detail::error_info_injector<boost::log::v2_mt_posix::system_error> >'
what():  Failed to set TLS value: Invalid argument
Stack trace (most recent call last) in thread 3666:

Am I missing something or did I miss a step?