synchronisation has not worked for months: `TokenMismatchException`

This issue respects the following points:

• I have read the FAQ
• I have searched for existing issues
• The issue affects the Notes Android app, neither the Notes server app nor the Nextcloud Android app.

Describe the bug

Open Notes app
Get error message: Synchronisation Failed

Expected behavior

• No issues connecting to the sever.
• I have removed and reinstalled the app without succes.
• I can read the existing notes, but nothing newer than december 2024.
• Notes app on desktop works as expected.

Notes Android version

4.3.1

Notes server version

see below

Nextcloud Android version

??

Nextcloud version

See below

Device

OnePlus Nord, CPH2663

Android Version

6.1.75-android14-11

App Store

• Google Play Store
• F-Droid
• Huawei App Gallery

Stacktrace

App Version: 4.3.1
App Version Code: 40030192
App Flavor: play

Files App Version Code: 30300890 (PROD)

---

OS Version: 6.1.75-android14-11-o-g4c9c8979e2a7(U.R4T2.1bb3b3f_1-22c9a)
OS API Level: 35
Device: OP5E93L1
Manufacturer: OnePlus
Model (and Product): CPH2663 (CPH2663EEA)

---

java.lang.Exception: com.nextcloud.android.sso.exceptions.TokenMismatchException: Den afleverede godkendelsestoken stemmer ikke overens eller pakkenavnet er ikke tilladt for denne handling
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.pushLocalChanges(NotesServerSyncTask.java:164)
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.run(NotesServerSyncTask.java:100)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:487)
	at java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
	at java.lang.Thread.run(Thread.java:1012)


java.lang.RuntimeException: com.nextcloud.android.sso.exceptions.TokenMismatchException: Den afleverede godkendelsestoken stemmer ikke overens eller pakkenavnet er ikke tilladt for denne handling
	at io.reactivex.internal.util.ExceptionHelper.wrapOrThrow(ExceptionHelper.java:46)
	at io.reactivex.internal.observers.BlockingMultiObserver.blockingGet(BlockingMultiObserver.java:93)
	at io.reactivex.Maybe.blockingGet(Maybe.java:2321)
	at io.reactivex.Observable.blockingSingle(Observable.java:5381)
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.pullRemoteChanges(NotesServerSyncTask.java:225)
	at it.niedermann.owncloud.notes.persistence.NotesServerSyncTask.run(NotesServerSyncTask.java:102)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:487)
	at java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
	at java.lang.Thread.run(Thread.java:1012)
Caused by: com.nextcloud.android.sso.exceptions.TokenMismatchException: Den afleverede godkendelsestoken stemmer ikke overens eller pakkenavnet er ikke tilladt for denne handling
	at com.nextcloud.android.sso.api.AidlNetworkRequest.performNetworkRequestV2(AidlNetworkRequest.java:179)
	at com.nextcloud.android.sso.api.NextcloudAPI.performNetworkRequestV2(NextcloudAPI.java:159)
	at com.nextcloud.android.sso.api.NextcloudAPI.lambda$performRequestObservableV2$0(NextcloudAPI.java:97)
	at com.nextcloud.android.sso.api.NextcloudAPI.$r8$lambda$af7W9mq2B0ZrhVJwZd-ibFp8T3Y(Unknown Source:0)
	at com.nextcloud.android.sso.api.NextcloudAPI$$ExternalSyntheticLambda1.subscribe(D8$$SyntheticClass:0)
	at io.reactivex.internal.operators.observable.ObservableFromPublisher.subscribeActual(ObservableFromPublisher.java:31)
	at io.reactivex.Observable.subscribe(Observable.java:12284)
	at io.reactivex.internal.operators.observable.ObservableSingleMaybe.subscribeActual(ObservableSingleMaybe.java:31)
	at io.reactivex.Maybe.subscribe(Maybe.java:4290)
	at io.reactivex.Maybe.blockingGet(Maybe.java:2320)
	... 8 more