Cannot open vault with win 2008 server

I try to open my vault with win 2008 server. What can I do?

11:40:12.849 [JavaFX Application Thread] ERROR o.c.ui.controllers.UnlockController - Unlock failed for technical reasons.
org.cryptomator.ui.model.Volume$VolumeException: org.cryptomator.frontend.webdav.mount.Mounter$CommandFailedException: Command failed with exit code 2. Expected 0. Stderr: Systemfehler 67 aufgetreten.

Der Netzwerkname wurde nicht gefunden.


	at org.cryptomator.ui.model.WebDavVolume.mount(WebDavVolume.java:63)
	at org.cryptomator.ui.model.WebDavVolume.mount(WebDavVolume.java:47)
	at org.cryptomator.ui.model.Vault.unlock(Vault.java:117)
	at org.cryptomator.ui.controllers.UnlockController.lambda$didClickUnlockButton$0(UnlockController.java:439)
	at org.cryptomator.ui.util.Tasks.lambda$create$0(Tasks.java:33)
	at org.cryptomator.ui.util.Tasks$TaskImpl.call(Tasks.java:139)
	at javafx.graphics/javafx.concurrent.Task$TaskCallable.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: org.cryptomator.frontend.webdav.mount.Mounter$CommandFailedException: Command failed with exit code 2. Expected 0. Stderr: Systemfehler 67 aufgetreten.

Der Netzwerkname wurde nicht gefunden.


	at org.cryptomator.frontend.webdav.mount.ProcessUtil.assertExitValue(ProcessUtil.java:28)
	at org.cryptomator.frontend.webdav.mount.WindowsMounter.mount(WindowsMounter.java:43)
	at org.cryptomator.frontend.webdav.servlet.WebDavServletController.mount(WebDavServletController.java:102)
	at org.cryptomator.ui.model.WebDavVolume.mount(WebDavVolume.java:60)
	... 12 common frames omitted
11:40:31.841 [pool-3-thread-1] INFO  o.c.common.settings.SettingsProvider - Settings saved to C:\Users\Thomas.Loesslein\AppData\Roaming\Cryptomator\settings.json

See this question:

Btw Windows Server 2008 is no longer supported since JDK 9. If it runs anyway, great. But since we don’t get any fixes for upstream bugs, we can not support this system either.