java.io.FileNotFoundException: /storage/extSdCard/Das schwarze Auge/Corvus Rabensen.xml: open failed: EACCES (Permission denied)

[gandulf]

java.io.FileNotFoundException: /storage/extSdCard/Das schwarze Auge/Corvus Rabensen.xml: open failed: EACCES (Permission denied)
	at libcore.io.IoBridge.open(IoBridge.java:409)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:88)
	at java.io.FileOutputStream.<init>(FileOutputStream.java:73)
	at com.dsatab.cloud.HeroExchange.pipe(HeroExchange.java:384)
	at com.dsatab.cloud.HeroExchange.download(HeroExchange.java:448)
	at com.dsatab.cloud.HeroExchange.synchronize(HeroExchange.java:425)
	at com.dsatab.cloud.HeroExchange.getHeroesByType(HeroExchange.java:621)
	at com.dsatab.cloud.HeroExchange.getHeroes(HeroExchange.java:526)
	at com.dsatab.cloud.HeroesSyncTask.loadInBackground(HeroesSyncTask.java:65)
	at com.dsatab.cloud.HeroesSyncTask.loadInBackground(HeroesSyncTask.java:15)
	at android.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:312)
	at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:69)
	at android.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:57)
	at android.os.AsyncTask$2.call(AsyncTask.java:288)
	at java.util.concurrent.FutureTask.run(FutureTask.java:237)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
	at java.lang.Thread.run(Thread.java:841)
Caused by: libcore.io.ErrnoException: open failed: EACCES (Permission denied)
	at libcore.io.Posix.open(Native Method)
	at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
	at libcore.io.IoBridge.open(IoBridge.java:393)
	... 17 more