How to connect Notes App in Nextcloud 26.0.2 to Android 11 Tablet

I have installed The Notes App on my Nextcloud and want also use the Android Notes App on my Tablet.

I’m new with all this server stuff.

Where can I find a step-by-step instruction for dummies to achieve this?

THX for Hints

Did you try it and experience any issues? I mean, there is really not much you could do wrong…

Assuming the Notes app is already installed on the server

  1. Install the Nextcloud Notes app on your tablet

  2. Open the app on your tablet

  3. Enter the URL of your server (e.g. cloud.yourdomain.tld).

  4. Enter your credentials

That’s it

If you already are using the official Nextcloud Android app on this tablet, it’s even easier. In this case, it will offer you to use the existing account from the Nextcloud app and you don’t need to log in manually.

THX, thats what I did
BUt I get this:

App Version: 4.0.0
App Version Code: 40000090
App Flavor: play

Files App Version Code: 30240290


OS Version: 3.18.140-g049da3672f7c(eng.TALU.20230128.005835)
OS API Level: 32
Device: gtaxlwifi
Manufacturer: Samsung
Model (and Product): SM-T580 (lineage_gtaxlwifi)

--- HTTP-Anfrage ist fehlgeschlagen mit HTTP-Statuscode: 401
	at$$ExternalSyntheticLambda0.subscribe(Unknown Source:6)
	at io.reactivex.internal.operators.observable.ObservableFromPublisher.subscribeActual(
	at io.reactivex.Observable.subscribe(
	at io.reactivex.internal.operators.observable.ObservableSingleMaybe.subscribeActual(
	at io.reactivex.Maybe.subscribe(
	at io.reactivex.Maybe.blockingGet(
	at io.reactivex.Observable.blockingSingle(
	at it.niedermann.owncloud.notes.persistence.CapabilitiesClient.getCapabilities(
	at it.niedermann.owncloud.notes.importaccount.ImportAccountActivity.lambda$onActivityResult$5$it-niedermann-owncloud-notes-importaccount-ImportAccountActivity(
	at it.niedermann.owncloud.notes.importaccount.ImportAccountActivity$$ Source:4)
	at java.util.concurrent.Executors$
	at java.util.concurrent.ThreadPoolExecutor.runWorker(
	at java.util.concurrent.ThreadPoolExecutor$
Caused by: java.lang.IllegalStateException: <?xml version="1.0"?>

	at android.os.Binder.execTransactInternal(
	at android.os.Binder.execTransact(

Therfore I though there is another way to login and I asked here

How to solve this?

PS: I am able to login to Nextcloud App & Deck App, also synced NC Calender with Google Calender App on the Tablet
But now This☹️

I have the same issue.