Security error when import

[pnemonic78]

      Caused by java.lang.SecurityException: Permission Denial: reading com.android.externalstorage.ExternalStorageProvider uri content://com.android.externalstorage.documents/document/primary%3AGnucash%2FBackup.gnucash from pid=7678, uid=10326 requires that you obtain access using ACTION_OPEN_DOCUMENT or related APIs
       at android.os.Parcel.createExceptionOrNull(Parcel.java:3069)
       at android.os.Parcel.createException(Parcel.java:3053)
       at android.os.Parcel.readException(Parcel.java:3036)
       at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:190)
       at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:142)
       at android.content.ContentProviderProxy.query(ContentProviderNative.java:495)
       at android.content.ContentResolver.query(ContentResolver.java:1229)
       at android.content.ContentResolver.query(ContentResolver.java:1161)
       at android.content.ContentResolver.query(ContentResolver.java:1117)
       at org.gnucash.android.importer.ImportAsyncTask.doInBackground(ImportAsyncTask.java:100)
       at org.gnucash.android.importer.ImportAsyncTask.doInBackground(ImportAsyncTask.java:44)
       at android.os.AsyncTask$3.call(AsyncTask.java:394)
       at java.util.concurrent.FutureTask.run(FutureTask.java:264)
       at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:305)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
       at java.lang.Thread.run(Thread.java:1012)