Failed to create compositor backend

I am trying to run weston with x11-backend.so and i have got the following output :

[17:49:24.502] weston 9.0.0
               https://wayland.freedesktop.org
               Bug reports to: https://gitlab.freedesktop.org/wayland/weston/issues/
               Build: 9.0.0
[17:49:24.502] Command line: /usr/bin/weston --backend=x11-backend.so
[17:49:24.503] OS: Linux, 5.4.110-ciele+, #60 SMP PREEMPT Wed Sep 28 21:51:20 CEST 2022, aarch64
[17:49:24.504] Using config file '/etc/xdg/weston/weston.ini'
[17:49:24.507] Output repaint window is 7 ms maximum.
[17:49:24.508] Loading module '/usr/lib/aarch64-linux-gnu/libweston-9/x11-backend.so'
[17:49:24.520] fatal: failed to create compositor backend

I have tried with and without the /etc/xdg/weston/weston.ini file and got the same output. My device is an iMX8 under Debian 11.

Thanks in advance !