Error message when opening Flatpak Evolution

Hello everybody!

Installation of the Evolution e-mail client successfully carried out in Deepin 20.6 in a vir-manager VM, where after opening the application via terminal the following error messages appear.

If there is a possibility of correction, thank you in advance for your usual attention.

Deepin@Deepin-PC:~$ flatpak install flathub org.gnome.Evolution
Looking for matches…

org.gnome.Evolution permissions:
    ipc                    network                fallback-x11       pcsc
    pulseaudio             wayland                x11                dri
    file access [1]        dbus access [2]

    [1] /run/.heim_org.h5l.kcm-socket, xdg-config/gnupg, xdg-config/pki, ~/.gnupg,
        ~/.pki
    [2] org.freedesktop.Notifications, org.freedesktop.secrets,
        org.gnome.OnlineAccounts, org.gnome.keyring.SystemPrompter


        ID                         Arch   Ramo   Op Remote  Baixar
 1. [✓] org.gnome.Platform         x86_64 42     u  flathub  30,5 MB / 276,2 MB
 2. [✓] org.gnome.Platform.Locale  x86_64 42     u  flathub 138,1 kB / 336,0 MB
 3. [✓] org.gnome.Evolution        x86_64 stable i  flathub  20,8 MB / 22,7 MB
 4. [✓] org.gnome.Evolution.Locale x86_64 stable i  flathub 676,7 kB / 22,9 MB

Changes complete.
Deepin@Deepin-PC:~$ flatpak run org.gnome.Evolution

(evolution.bin:50): GLib-GObject-CRITICAL **: 09:30:24.155: g_value_set_boxed: assertion 'G_VALUE_HOLDS_BOXED (value)' failed

(evolution.bin:50): dbind-WARNING **: 09:30:24.332: AT-SPI: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: org.freedesktop.DBus.Error.ServiceUnknown

(evolution.bin:50): e-mail-engine-WARNING **: 09:30:26.123: Failed to add service 'Sendmail' (sendmail): Sem provedor disponível para o protocolo “sendmail”

(evolution-alarm-notify:57): GLib-GObject-CRITICAL **: 09:30:31.588: g_value_set_boxed: assertion 'G_VALUE_HOLDS_BOXED (value)' failed

(evolution-alarm-notify:57): dbind-WARNING **: 09:30:31.615: AT-SPI: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: org.freedesktop.DBus.Error.ServiceUnknown
Could not determine the accessibility bus address

(WebKitWebProcess:108): GLib-GObject-CRITICAL **: 09:30:47.534: g_value_set_boxed: assertion 'G_VALUE_HOLDS_BOXED (value)' failed

(evolution.bin:50): GLib-GIO-WARNING **: 09:32:23.472: Your application did not unregister from D-Bus before destruction. Consider using g_application_run().
Deepin@Deepin-PC:~$