after the app closed with FC (Issue 21) I get this FC after the start of the 
application

I/ActivityManager(  769): Starting activity: Intent { 
act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] 
flg=0x10100000 cmp=org.ttrssreader/.gui.activities.CategoryActivity }
I/ActivityManager(  769): Start proc org.ttrssreader for activity 
org.ttrssreader/.gui.activities.ArticleActivity: pid=8078 uid=10066 gids={3003, 
1015}
W/InputManagerService(  769): Window already focused, ignoring focus gain of: 
com.android.internal.view.IInputMethodClient$Stub$Proxy@4419fac0
I/WindowManager(  769): Setting rotation to 1, animFlags=0
I/ActivityManager(  769): Config changed: { scale=1.0 imsi=232/11 loc=en_GB 
touch=3 keys=1/1/2 nav=3/1 orien=2 layout=18 uiMode=17 seq=64}
I/UsageStats(  769): Unexpected resume of org.ttrssreader while already resumed 
in org.ttrssreader
W/dalvikvm( 8078): threadid=11: thread exiting with uncaught exception 
(group=0x400207e0)
I/ActivityManager(  769): Displayed activity 
org.ttrssreader/.gui.activities.ArticleActivity: 2351 ms (total 2351 ms)
E/AndroidRuntime( 8078): FATAL EXCEPTION: AsyncTask #2
E/AndroidRuntime( 8078): java.lang.RuntimeException: An error occured while 
executing doInBackground()
E/AndroidRuntime( 8078):        at 
android.os.AsyncTask$3.done(AsyncTask.java:200)
E/AndroidRuntime( 8078):        at 
java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
E/AndroidRuntime( 8078):        at 
java.util.concurrent.FutureTask.setException(FutureTask.java:124)
E/AndroidRuntime( 8078):        at 
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
E/AndroidRuntime( 8078):        at 
java.util.concurrent.FutureTask.run(FutureTask.java:137)
E/AndroidRuntime( 8078):        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068)
E/AndroidRuntime( 8078):        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561)
E/AndroidRuntime( 8078):        at java.lang.Thread.run(Thread.java:1096)
E/AndroidRuntime( 8078): Caused by: java.lang.NullPointerException
E/AndroidRuntime( 8078):        at 
org.ttrssreader.controllers.DBHelper.getArticle(DBHelper.java:655)
E/AndroidRuntime( 8078):        at 
org.ttrssreader.controllers.DataController.getArticleWithContent(DataController.
java:299)
E/AndroidRuntime( 8078):        at 
org.ttrssreader.model.article.ArticleItemAdapter.refreshData(ArticleItemAdapter.
java:38)
E/AndroidRuntime( 8078):        at 
org.ttrssreader.model.Refresher.doInBackground(Refresher.java:43)
E/AndroidRuntime( 8078):        at 
org.ttrssreader.model.Refresher.doInBackground(Refresher.java:24)
E/AndroidRuntime( 8078):        at 
android.os.AsyncTask$2.call(AsyncTask.java:185)
E/AndroidRuntime( 8078):        at 
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
E/AndroidRuntime( 8078):        ... 4 more
D/AndroidRuntime( 8078): Shutting down VM
W/dalvikvm( 8078): threadid=1: thread exiting with uncaught exception 
(group=0x400207e0)
I/Process ( 8078): Sending signal. PID: 8078 SIG: 9
I/ActivityManager(  769): Process org.ttrssreader (pid 8078) has died.
I/WindowManager(  769): WIN DEATH: Window{4406b0c0 
org.ttrssreader/org.ttrssreader.gui.activities.ArticleActivity paused=false}
I/ActivityManager(  769): Start proc org.ttrssreader for activity 
org.ttrssreader/.gui.activities.FeedHeadlineListActivity: pid=8095 uid=10066 
gids={3003, 1015}
I/UsageStats(  769): Unexpected resume of org.ttrssreader while already resumed 
in org.ttrssreader
I/ttrss   ( 8095): FeedHeadlineListAdapter - getArticlesHeadlines(feedId: -3)
W/dalvikvm( 8095): threadid=8: thread exiting with uncaught exception 
(group=0x400207e0)
E/AndroidRuntime( 8095): FATAL EXCEPTION: AsyncTask #1
E/AndroidRuntime( 8095): java.lang.RuntimeException: An error occured while 
executing doInBackground()
E/AndroidRuntime( 8095):        at 
android.os.AsyncTask$3.done(AsyncTask.java:200)
E/AndroidRuntime( 8095):        at 
java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
E/AndroidRuntime( 8095):        at 
java.util.concurrent.FutureTask.setException(FutureTask.java:124)
E/AndroidRuntime( 8095):        at 
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
E/AndroidRuntime( 8095):        at 
java.util.concurrent.FutureTask.run(FutureTask.java:137)
E/AndroidRuntime( 8095):        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068)
E/AndroidRuntime( 8095):        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561)
E/AndroidRuntime( 8095):        at java.lang.Thread.run(Thread.java:1096)
E/AndroidRuntime( 8095): Caused by: java.lang.NullPointerException
E/AndroidRuntime( 8095):        at 
org.ttrssreader.controllers.DataController.getArticlesHeadlines(DataController.j
ava:157)
E/AndroidRuntime( 8095):        at 
org.ttrssreader.model.feedheadline.FeedHeadlineListAdapter.refreshData(FeedHeadl
ineListAdapter.java:227)
E/AndroidRuntime( 8095):        at 
org.ttrssreader.model.Refresher.doInBackground(Refresher.java:43)
E/AndroidRuntime( 8095):        at 
org.ttrssreader.model.Refresher.doInBackground(Refresher.java:24)
E/AndroidRuntime( 8095):        at 
android.os.AsyncTask$2.call(AsyncTask.java:185)
E/AndroidRuntime( 8095):        at 
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
E/AndroidRuntime( 8095):        ... 4 more
W/InputManagerService(  769): Got RemoteException sending setActive(false) 
notification to pid 8078 uid 10066