xrdp: Unable to use xrdp on Alpine Linux V3.15

Hi! I have a fresh install of Linux Alpine 3.15.0 with XFCE. I try to enable xrdp on it like this:

apk add  xrdp
rc-service xrdp start
rc-service xrdp-sesman start

From a windows, i use mstcs.exe to access my server. I get login screen. But when i validate, credentials popup disappears then nothing happens during few minutes. Then, I get connection log popup indicating “connection problem, giving up”

My /var/log/xrdp-sesman.log indicate: [20220316-16:24:10] [WARN ] Window manager (pid 3251, display 10) exited quickly (0 secs). This could indicate a window manager config problem

And here are errors in my .xorgxrdp10.log:

[  1808.287] (EE) Unable to locate/open config file: "xrdp/xorg.conf"
[  1808.348] (EE) Failed to load module "fbdev" (module does not exist, 0)
[  1808.348] (EE) Failed to load module "vesa" (module does not exist, 0)
[  1808.449] (EE) AIGLX error: dlopen of /usr/lib/xorg/modules/dri/swrast_dri.so failed (Error loading shared library /usr/lib/xorg/modules/dri/swrast_dri.so: No such file or directory)
[  1808.449] (EE) AIGLX error: unable to load driver swrast
[  1808.449] (EE) GLX: could not load software renderer

Any clue of what could be the problem?