impossible to apply changes, add wlan0 interface

I'm trying to save changes by adding the wlan0 interface to disconnect my raspberry from the router, any ideas?

Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; systemctl start 'networking' 2>&1' with exit code '1': Job for networking.service failed because the control process exited with error code. See "systemctl status networking.service" and "journalctl -xe" for details.

Error #0:
OMV\ExecException: Failed to execute command 'export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; systemctl start 'networking' 2>&1' with exit code '1': Job for networking.service failed because the control process exited with error code.
See "systemctl status networking.service" and "journalctl -xe" for details. in /usr/share/php/openmediavault/system/process.inc:182
Stack trace:
#0 /usr/share/php/openmediavault/system/systemctl.inc(86): OMV\System\Process->execute(Array, 1)
#1 /usr/share/php/openmediavault/system/systemctl.inc(146): OMV\System\SystemCtl->exec('start', NULL, false)
#2 /usr/share/openmediavault/engined/module/networking.inc(44): OMV\System\SystemCtl->start()
#3 /usr/share/openmediavault/engined/rpc/config.inc(194): OMVModuleNetworking->startService()
#4 [internal function]: OMVRpcServiceConfig->applyChanges(Array, Array)
#5 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)
#6 /usr/share/php/openmediavault/rpc/serviceabstract.inc(149): OMV\Rpc\ServiceAbstract->callMethod('applyChanges', Array, Array)
#7 /usr/share/php/openmediavault/rpc/serviceabstract.inc(565): OMV\Rpc\ServiceAbstract->OMV\Rpc\{closure}('/tmp/bgstatusIC...', '/tmp/bgoutputF5...')
#8 /usr/share/php/openmediavault/rpc/serviceabstract.inc(159): OMV\Rpc\ServiceAbstract->execBgProc(Object(Closure))
#9 /usr/share/openmediavault/engined/rpc/config.inc(213): OMV\Rpc\ServiceAbstract->callMethodBg('applyChanges', Array, Array)
#10 [internal function]: OMVRpcServiceConfig->applyChangesBg(Array, Array)
#11 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)
#12 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('applyChangesBg', Array, Array)
#13 /usr/sbin/omv-engined(537): OMV\Rpc\Rpc::call('Config', 'applyChangesBg', Array, Array, 1)
#14 {main}

Quote from votdev

You will get more information by running systemctl status networking.

root@raspberrypi:~# systemctl status networking

● networking.service - Raise network interfaces

Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)

Active: failed (Result: exit-code) since Mon 2020-09-07 14:01:12 CEST; 38min ago

Docs: man:interfaces(5)

Process: 26004 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE)

Process: 25999 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] && udevadm settle (code=exited, status=0/SUCCESS)

Main PID: 26004 (code=exited, status=1/FAILURE)

Sep 07 14:01:12 raspberrypi wpa_supplicant[26035]: Delete '/run/wpa_supplicant/wlan0' manually if it is not used anymore

Sep 07 14:01:12 raspberrypi wpa_supplicant[26035]: Failed to initialize control interface '/run/wpa_supplicant'.

You may have another wpa_supplicant process already running or the file was

left by an unclean termination of wpa_supplicant in which case you will need

to manually remove this file before starting wpa_supplicant again.

Sep 07 14:01:12 raspberrypi wpa_supplicant[26035]: nl80211: deinit ifname=wlan0 disabled_11b_rates=0

Sep 07 14:01:12 raspberrypi ifup[26004]: /etc/network/if-pre-up.d/wpasupplicant: 120: /etc/network/if-pre-up.d/wpasupplicant: cannot create /dev/stderr: No such device or address

Sep 07 14:01:12 raspberrypi ifup[26004]: run-parts: /etc/network/if-pre-up.d/wpasupplicant exited with return code 1

Sep 07 14:01:12 raspberrypi ifup[26004]: ifup: failed to bring up wlan0

Sep 07 14:01:12 raspberrypi systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE

Sep 07 14:01:12 raspberrypi systemd[1]: Failed to start Raise network interfaces.

Sep 07 14:01:12 raspberrypi systemd[1]: networking.service: Unit entered failed state.

Sep 07 14:01:12 raspberrypi systemd[1]: networking.service: Failed with result 'exit-code'.