Error Importing Profile

[Hippo]

When importing a configuration, I receive the following error message:

Error during import of managed profile: Invalid UUID string: Irgendwas
java.lang.IllegalArgumentException: Invalid UUID string: Irgendwas
at java.util.UUID.fromString(UUID.java:194)
at de.blinkt.openvpn.api.AppRestrictions.addProfile(AppRestrictions.java:212)
at de.blinkt.openvpn.api.AppRestrictions.applyRestrictions(AppRestrictions.java:142)
at de.blinkt.openvpn.api.AppRestrictions.checkRestrictions(AppRestrictions.java:238)
at de.blinkt.openvpn.core.ICSOpenVPNApplication.onCreate(ICSOpenVPNApplication.java:48)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1266)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:7614)
at android.app.ActivityThread.-$$Nest$mhandleBindApplication(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2400)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:226)
at android.os.Looper.loop(Looper.java:313)
at android.app.ActivityThread.main(ActivityThread.java:8757)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1067)

I have already tried several UUIDs, also with a UUID generator (https://www.uuidgenerator.net/), unfortunately without success.
What could be the reason for this?