Virtuino 6 crash

[torn]

hi, when starting virtuino 6 it stops suddenly. It happens almost every second launch. Another thing I noticed is that I can't export settings.

Code:

java.lang.IllegalStateException: Cannot perform this operation because the connection pool has been closed.
    at android.database.sqlite.SQLiteConnectionPool.throwIfClosedLocked(SQLiteConnectionPool.java:1034)
    at android.database.sqlite.SQLiteConnectionPool.waitForConnection(SQLiteConnectionPool.java:653)
    at android.database.sqlite.SQLiteConnectionPool.acquireConnection(SQLiteConnectionPool.java:369)
    at android.database.sqlite.SQLiteSession.acquireConnection(SQLiteSession.java:894)
    at android.database.sqlite.SQLiteSession.executeForChangedRowCount(SQLiteSession.java:752)
    at android.database.sqlite.SQLiteStatement.executeUpdateDelete(SQLiteStatement.java:64)
    at w0.e.g(Unknown Source:2)
    at d3.b.a(Unknown Source:26)
    at info.mqtt.android.service.MqttService.c(SourceFile:31)
    at b3.a.e(SourceFile:68)
    at b3.a$a.onServiceConnected(SourceFile:36)
    at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1660)
    at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1689)
    at android.os.Handler.handleCallback(Handler.java:794)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:176)
    at android.app.ActivityThread.main(ActivityThread.java:6651)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:824)