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sql - Problem with Testing and Debuging of Android Apps

Actucally I have two related questions concerning Android Errors. I released an update of an app which worked ok before and works in the current version on my Nexus One, G1 and the emulator. However I get a lot of error logs through the Android market console since this last update and I can't reproduce the error. The app is quite simple with only two activities, so it should be quite easy to test the App manually. However there are often Errors which I did not find before releasing.

So the first questions is, is there a way to test more deaply?

My second question is concerning the current error specifically. There seems to be a problem with the SQLite database wich can't find a table. I guess the database can't be created in the first place thus the error. Here's the stack trace:

BTW. There were three users with a Desire HD with complaints. Is there a bug known?

java.lang.RuntimeException: Unable to resume activity {XXX/XXX}: android.database.sqlite.SQLiteException: no such table: main_ger: , while compiling: SELECT _id, code, area FROM main_ger
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3394)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3415)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2859)
at android.app.ActivityThread.access$2300(ActivityThread.java:136)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2179)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:143)
at android.app.ActivityThread.main(ActivityThread.java:5068)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:521)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.database.sqlite.SQLiteException: no such table: main_ger: , while compiling: SELECT _id, code, area FROM main_ger
at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method)
at android.database.sqlite.SQLiteCompiledSql.compile(SQLiteCompiledSql.java:91)
at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:64)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:80)
at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:46)
at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:53)
at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1417)
at android.database.sqlite.SQLiteDatabase.queryWithFactory(SQLiteDatabase.java:1301)
at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1256)
at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1336)
at XX.XXX.DataBaseHelper.fetchAll(DataBaseHelper.java:190)
at XX.XXX.fillData(mainactivity.java:240)
at XX.XXX.onResume(mainactivity.java:522)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1238)
at android.app.Activity.performResume(Activity.java:3904)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3384)
... 12 more
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