Einen schönen guten Morgen,
ich sehe eigentlich jede Woche einmal in der "Aktualisierungsverwaltung" nach, ob es was neues zum installieren gibt.
Seit ein paar Tagen bekomme jedoch eine Fehlermeldung: 
Fehler #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; apt-get update 2>&1' with exit code '100': Holen:1 file:/var/cache/openmediavault/archives InRelease
Ign:1 file:/var/cache/openmediavault/archives InRelease
Holen:2 file:/var/cache/openmediavault/archives Release
Ign:2 file:/var/cache/openmediavault/archives Release
Holen:3 file:/var/cache/openmediavault/archives Packages
Ign:3 file:/var/cache/openmediavault/archives Packages
Holen:4 file:/var/cache/openmediavault/archives Translation-de
Ign:4 file:/var/cache/openmediavault/archives Translation-de
Holen:5 file:/var/cache/openmediavault/archives Translation-en
Ign:5 file:/var/cache/openmediavault/archives Translation-en
Holen:3 file:/var/cache/openmediavault/archives Packages
Ign:3 file:/var/cache/openmediavault/archives Packages
Holen:4 file:/var/cache/openmediavault/archives Translation-de
Ign:4 file:/var/cache/openmediavault/archives Translation-de
Holen:5 file:/var/cache/openmediavault/archives Translation-en
Ign:5 file:/var/cache/openmediavault/archives Translation-en
Holen:3 file:/var/cache/openmediavault/archives Packages
Ign:3 file:/var/cache/openmediavault/archives Packages
Holen:4 file:/var/cache/openmediavault/archives Translation-de
Ign:4 file:/var/cache/openmediavault/archives Translation-de
Holen:5 file:/var/cache/openmediavault/archives Translation-en
Ign:5 file:/var/cache/openmediavault/archives Translation-en
Holen:3 file:/var/cache/openmediavault/archives Packages
Ign:3 file:/var/cache/openmediavault/archives Packages
Holen:4 file:/var/cache/openmediavault/archives Translation-de
Ign:4 file:/var/cache/openmediavault/archives Translation-de
Holen:5 file:/var/cache/openmediavault/archives Translation-en
Ign:5 file:/var/cache/openmediavault/archives Translation-en
Holen:3 file:/var/cache/openmediavault/archives Packages
Ign:3 file:/var/cache/openmediavault/archives Packages
Holen:4 file:/var/cache/openmediavault/archives Translation-de
Ign:4 file:/var/cache/openmediavault/archives Translation-de
Holen:5 file:/var/cache/openmediavault/archives Translation-en
Ign:5 file:/var/cache/openmediavault/archives Translation-en
Holen:3 file:/var/cache/openmediavault/archives Packages [1100 B]
Holen:4 file:/var/cache/openmediavault/archives Translation-de
Ign:4 file:/var/cache/openmediavault/archives Translation-de
Holen:5 file:/var/cache/openmediavault/archives Translation-en
Ign:5 file:/var/cache/openmediavault/archives Translation-en
OK:6 http://security.debian.org/debian-security stretch/updates InRelease
OK:7 http://httpredir.debian.org/debian stretch-backports InRelease
Ign:8 http://debian.lagis.at/debian stretch InRelease
OK:9 http://packages.openmediavault.org/public arrakis InRelease
OK:10 http://debian.lagis.at/debian stretch-updates InRelease
OK:11 http://debian.lagis.at/debian stretch Release
Holen:12 https://openmediavault.github.io/packages arrakis InRelease [12.8 kB]
Ign:13 https://dl.bintray.com/openmed…plugin-developers/arrakis stretch InRelease
Fehl:14 https://dl.bintray.com/openmed…plugin-developers/arrakis stretch Release 403 Forbidden
Exception ignored in: <function WeakValueDictionary.__init__.<locals>.remove at 0x7f5a777f0a60>
Traceback (most recent call last): File "/usr/lib/python3.5/weakref.py", line 117, in remove
TypeError: 'NoneType' object is not callable
Exception ignored in: <function WeakValueDictionary.__init__.<locals>.remove at 0x7f5a777f0a60>
Traceback (most recent call last): File "/usr/lib/python3.5/weakref.py", line 117, in remove
TypeError: 'NoneType' object is not callable
Paketlisten werden gelesen...
E: The repository 'https://dl.bintray.com/openmediavault-plugin-developers/arrakis stretch Release' does no longer have a Release file. in /usr/share/openmediavault/engined/rpc/apt.inc:220
Stack trace:
#0 /usr/share/php/openmediavault/rpc/serviceabstract.inc(565): OMVRpcServiceApt->{closure}('/tmp/bgstatusaE...', '/tmp/bgoutput0Q...')
#1 /usr/share/openmediavault/engined/rpc/apt.inc(224): OMV\Rpc\ServiceAbstract->execBgProc(Object(Closure))
#2 [internal function]: OMVRpcServiceApt->update(NULL, Array)
#3 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)
#4 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('update', NULL, Array)
#5 /usr/sbin/omv-engined(537): OMV\Rpc\Rpc::call('Apt', 'update', NULL, Array, 1)
#6 {main}
Woran kann das liegen - bzw. was kann ich dagegen machen?
Allerdings verwende ich noch immer die Version 4.1.36-1 (Arrakis), weil ich das Upgrade auf die Version 5 scheue ... 
