Error says:
and there’s something more to it:
App Version: 3.7.1
App Version Code: 3007001
App Flavor: fdroid
Files App Version Code: 30240190
OS Version: 4.14.186-gd5b54dace-dirty(root.20220810.192554)
OS API Level: 30
Device: Titan_Slim
Manufacturer: Unihertz
Model (and Product): Titan Slim (Titan_Slim_EEA)
com.nextcloud.android.sso.exceptions.NextcloudApiNotRespondingException: Nextcloud Files app API is not responding. This is most likely due to battery optimizations on your phone. Try to disable the battery optimization for both apps (Nextcloud Android and this app). In all other cases please try to clear the storage of both apps.
at com.nextcloud.android.sso.api.AidlNetworkRequest.waitForApi(AidlNetworkRequest.java:162)
at com.nextcloud.android.sso.api.AidlNetworkRequest.performAidlNetworkRequestV2(AidlNetworkRequest.java:298)
at com.nextcloud.android.sso.api.AidlNetworkRequest.performNetworkRequestV2(AidlNetworkRequest.java:180)
at com.nextcloud.android.sso.api.NextcloudAPI.performNetworkRequestV2(NextcloudAPI.java:199)
at com.nextcloud.android.sso.api.NextcloudAPI.lambda$performRequestObservableV2$1$com-nextcloud-android-sso-api-NextcloudAPI(NextcloudAPI.java:129)
at com.nextcloud.android.sso.api.NextcloudAPI$$ExternalSyntheticLambda0.subscribe(Unknown Source:6)
at io.reactivex.internal.operators.observable.ObservableFromPublisher.subscribeActual(ObservableFromPublisher.java:31)
at io.reactivex.Observable.subscribe(Observable.java:12284)
at io.reactivex.internal.operators.observable.ObservableSingleMaybe.subscribeActual(ObservableSingleMaybe.java:31)
at io.reactivex.Maybe.subscribe(Maybe.java:4290)
at io.reactivex.Maybe.blockingGet(Maybe.java:2320)
at io.reactivex.Observable.blockingSingle(Observable.java:5381)
at it.niedermann.owncloud.notes.persistence.CapabilitiesClient.getCapabilities(CapabilitiesClient.java:32)
at it.niedermann.owncloud.notes.importaccount.ImportAccountActivity.lambda$onActivityResult$5$it-niedermann-owncloud-notes-importaccount-ImportAccountActivity(ImportAccountActivity.java:97)
at it.niedermann.owncloud.notes.importaccount.ImportAccountActivity$$ExternalSyntheticLambda2.run(Unknown Source:4)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:462)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:923)
I tried google store version as well, still same.