diff --git a/app/build.gradle b/app/build.gradle
index f779313f..baac39ee 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,8 +6,8 @@ android {
         applicationId "com.adam.aslfms"
         minSdkVersion 14
         targetSdkVersion 26
-        versionCode = 58
-        versionName = "1.6.7"
+        versionCode = 59
+        versionName = "1.6.8"
 
         testApplicationId "com.adam.aslfms.test"
         testInstrumentationRunner "android.test.InstrumentationTestRunner"
diff --git a/app/src/androidTest/res/layout/main.xml b/app/src/androidTest/res/layout/main.xml
index 3a5f117d..33198632 100644
--- a/app/src/androidTest/res/layout/main.xml
+++ b/app/src/androidTest/res/layout/main.xml
@@ -2,8 +2,7 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
     android:layout_width="fill_parent"
-    android:layout_height="fill_parent"
-    >
+    android:layout_height="fill_parent">
 <TextView  
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
diff --git a/app/src/main/assets/changelog.txt b/app/src/main/assets/changelog.txt
index 91b5e327..c9f11337 100644
--- a/app/src/main/assets/changelog.txt
+++ b/app/src/main/assets/changelog.txt
@@ -1,6 +1,11 @@
 Visit,
 https://github.com/simple-last-fm-scrobbler/sls
 For more details.
+https://github.com/simple-last-fm-scrobbler/sls/wiki/Privacy-Concerns
+For privacy concerns.
+
+- 1.6.8 (2019-9-15) codename: kingus
+  * Correction Rules database problem fixed
 
 - 1.6.7 (2019-9-15) codename: jingus
   * Fixed non-foreground service crash Bug
diff --git a/app/src/main/java/com/adam/aslfms/ChangeThemeActivity.java b/app/src/main/java/com/adam/aslfms/ChangeThemeActivity.java
index 2ea8fa9f..59f4b18b 100644
--- a/app/src/main/java/com/adam/aslfms/ChangeThemeActivity.java
+++ b/app/src/main/java/com/adam/aslfms/ChangeThemeActivity.java
@@ -25,7 +25,6 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Resources;
-import android.os.Build;
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
 import android.util.Log;
diff --git a/app/src/main/java/com/adam/aslfms/MusicAppsActivity.java b/app/src/main/java/com/adam/aslfms/MusicAppsActivity.java
index fabdd53b..fb1de407 100644
--- a/app/src/main/java/com/adam/aslfms/MusicAppsActivity.java
+++ b/app/src/main/java/com/adam/aslfms/MusicAppsActivity.java
@@ -30,7 +30,6 @@
 import android.preference.PreferenceCategory;
 import android.preference.PreferenceScreen;
 import android.support.v4.app.NavUtils;
-import android.util.Log;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
diff --git a/app/src/main/java/com/adam/aslfms/OptionsActivity.java b/app/src/main/java/com/adam/aslfms/OptionsActivity.java
index 7a85059e..7a077a50 100644
--- a/app/src/main/java/com/adam/aslfms/OptionsActivity.java
+++ b/app/src/main/java/com/adam/aslfms/OptionsActivity.java
@@ -24,7 +24,6 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Resources;
-import android.net.sip.SipSession;
 import android.os.Bundle;
 import android.preference.CheckBoxPreference;
 import android.preference.ListPreference;
diff --git a/app/src/main/java/com/adam/aslfms/SettingsActivity.java b/app/src/main/java/com/adam/aslfms/SettingsActivity.java
index f894804a..2e930c10 100644
--- a/app/src/main/java/com/adam/aslfms/SettingsActivity.java
+++ b/app/src/main/java/com/adam/aslfms/SettingsActivity.java
@@ -121,7 +121,8 @@ protected void onCreate(Bundle savedInstanceState) {
         int v = Util.getAppVersionCode(this, getPackageName());
         if (settings.getWhatsNewViewedVersion() < v){
             settings.setKeyBypassNewPermissions(2);
-            mDb.rebuildDataBaseOnce(); // keep as not all users have the newest database.
+            mDb.rebuildScrobblesDatabaseOnce(); // keep as not all users have the newest database.
+            // TODO: verify only needed databases are destroyed
         }
         if (settings.getKeyBypassNewPermissions() == 2){
             startActivity(new Intent(this, PermissionsActivity.class));
diff --git a/app/src/main/java/com/adam/aslfms/UserCredActivity.java b/app/src/main/java/com/adam/aslfms/UserCredActivity.java
index d96dfc02..2c318004 100644
--- a/app/src/main/java/com/adam/aslfms/UserCredActivity.java
+++ b/app/src/main/java/com/adam/aslfms/UserCredActivity.java
@@ -36,7 +36,6 @@
 import android.util.Log;
 import android.view.MenuItem;
 
-import com.adam.aslfms.service.ControllerReceiverService;
 import com.adam.aslfms.service.NetApp;
 import com.adam.aslfms.service.ScrobblingService;
 import com.adam.aslfms.util.AppSettings;
diff --git a/app/src/main/java/com/adam/aslfms/UserCredsListActivity.java b/app/src/main/java/com/adam/aslfms/UserCredsListActivity.java
index 9aee27dc..dd87a44e 100644
--- a/app/src/main/java/com/adam/aslfms/UserCredsListActivity.java
+++ b/app/src/main/java/com/adam/aslfms/UserCredsListActivity.java
@@ -32,7 +32,6 @@
 import android.preference.PreferenceCategory;
 import android.preference.PreferenceScreen;
 import android.support.v4.app.NavUtils;
-import android.util.Log;
 import android.view.MenuItem;
 
 import com.adam.aslfms.service.NetApp;
diff --git a/app/src/main/java/com/adam/aslfms/ViewCorrectionRuleEditDialog.java b/app/src/main/java/com/adam/aslfms/ViewCorrectionRuleEditDialog.java
index b136ea89..ab01329c 100644
--- a/app/src/main/java/com/adam/aslfms/ViewCorrectionRuleEditDialog.java
+++ b/app/src/main/java/com/adam/aslfms/ViewCorrectionRuleEditDialog.java
@@ -29,8 +29,8 @@
 import android.view.View;
 import android.widget.TextView;
 
-import com.adam.aslfms.util.ScrobblesDatabase;
 import com.adam.aslfms.util.CorrectionRule;
+import com.adam.aslfms.util.ScrobblesDatabase;
 
 import java.util.AbstractMap.SimpleEntry;
 import java.util.ArrayList;
diff --git a/app/src/main/java/com/adam/aslfms/ViewCorrectionRulesActivity.java b/app/src/main/java/com/adam/aslfms/ViewCorrectionRulesActivity.java
index e55304cf..c631b624 100644
--- a/app/src/main/java/com/adam/aslfms/ViewCorrectionRulesActivity.java
+++ b/app/src/main/java/com/adam/aslfms/ViewCorrectionRulesActivity.java
@@ -41,9 +41,9 @@
 import android.widget.TextView;
 
 import com.adam.aslfms.util.AppSettings;
+import com.adam.aslfms.util.CorrectionRule;
 import com.adam.aslfms.util.MyContextWrapper;
 import com.adam.aslfms.util.ScrobblesDatabase;
-import com.adam.aslfms.util.CorrectionRule;
 import com.adam.aslfms.util.Util;
 
 /**
diff --git a/app/src/main/java/com/adam/aslfms/ViewScrobbleCacheActivity.java b/app/src/main/java/com/adam/aslfms/ViewScrobbleCacheActivity.java
index 7cd3f5a3..65fbe5f0 100644
--- a/app/src/main/java/com/adam/aslfms/ViewScrobbleCacheActivity.java
+++ b/app/src/main/java/com/adam/aslfms/ViewScrobbleCacheActivity.java
@@ -24,8 +24,6 @@
 import android.app.AlertDialog;
 import android.content.BroadcastReceiver;
 import android.content.Context;
-import android.content.DialogInterface;
-import android.content.DialogInterface.OnClickListener;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.res.Resources;
@@ -43,7 +41,6 @@
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.AdapterView;
 import android.widget.AdapterView.AdapterContextMenuInfo;
 import android.widget.CursorAdapter;
 import android.widget.ListView;
diff --git a/app/src/main/java/com/adam/aslfms/ViewScrobbleInfoDialog.java b/app/src/main/java/com/adam/aslfms/ViewScrobbleInfoDialog.java
index 7c16e9ac..9396cdf1 100644
--- a/app/src/main/java/com/adam/aslfms/ViewScrobbleInfoDialog.java
+++ b/app/src/main/java/com/adam/aslfms/ViewScrobbleInfoDialog.java
@@ -23,8 +23,6 @@
 
 import android.app.AlertDialog;
 import android.content.Context;
-import android.content.DialogInterface;
-import android.content.DialogInterface.OnClickListener;
 import android.content.Intent;
 import android.database.Cursor;
 import android.os.Build;
diff --git a/app/src/main/java/com/adam/aslfms/service/Scrobbler.java b/app/src/main/java/com/adam/aslfms/service/Scrobbler.java
index c6a007cc..9e94b421 100644
--- a/app/src/main/java/com/adam/aslfms/service/Scrobbler.java
+++ b/app/src/main/java/com/adam/aslfms/service/Scrobbler.java
@@ -194,9 +194,9 @@ private void notifyAuthStatusUpdate(int st) {
     }
 
     /**
-     * @return a {@link ScrobbleResult} struct with some info
      * @throws BadSessionException
      * @throws TemporaryFailureException
+     * @throws AuthStatus.BadSessionException
      */
     public void scrobbleCommit(HandshakeResult hInfo, Track[] tracks)
             throws BadSessionException, TemporaryFailureException, AuthStatus.ClientBannedException, AuthStatus.UnknownResponseException {
diff --git a/app/src/main/java/com/adam/aslfms/util/MyBase64.java b/app/src/main/java/com/adam/aslfms/util/MyBase64.java
index 0c939ce0..70b60a9c 100644
--- a/app/src/main/java/com/adam/aslfms/util/MyBase64.java
+++ b/app/src/main/java/com/adam/aslfms/util/MyBase64.java
@@ -62,7 +62,7 @@ public class MyBase64 {
     public static final int URL_SAFE = 8;
 
     /**
-     * Flag to pass to {@link Base64OutputStream} to indicate that it
+     * Flag to pass to {@link MyBase64} OutputStream to indicate that it
      * should not close the output stream it is wrapping when it
      * itself is closed.
      */
diff --git a/app/src/main/java/com/adam/aslfms/util/ScrobblesDatabase.java b/app/src/main/java/com/adam/aslfms/util/ScrobblesDatabase.java
index e3689362..f9b6994c 100644
--- a/app/src/main/java/com/adam/aslfms/util/ScrobblesDatabase.java
+++ b/app/src/main/java/com/adam/aslfms/util/ScrobblesDatabase.java
@@ -504,21 +504,29 @@ public CorrectionRule fetchCorrectioneRule(int id) {
         return rule;
     }
 
-    public void rebuildDataBaseOnce() {
-        mDb.execSQL("DROP TABLE IF EXISTS " + TABLENAME_SCROBBLES);
+    public void rebuildCoreNetappDatabaseOnce(){
+        Log.d(TAG, "dropping sql corenetapp ");
         mDb.execSQL("DROP TABLE IF EXISTS " + TABLENAME_CORRNETAPP);
-        // TODO add migration of old rules if/when necessary
+        Log.d(TAG, "create sql corrnetapp: " + DATABASE_CREATE_CORRNETAPP);
+        mDb.execSQL(DATABASE_CREATE_CORRNETAPP);
+    }
+
+    public void rebuildCorrectionsDatabaseOnce(){
+        Log.d(TAG, "dropping sql corrections ");
         mDb.execSQL("DROP TABLE IF EXISTS " + TABLENAME_CORRECTION_RULES);
         mDb.execSQL("DROP TABLE IF EXISTS " + TABLENAME_RULE_CHANGES);
         mDb.execSQL("DROP TRIGGER IF EXISTS " + TRIGGER_NAME_CHECK_CORRECTION_RULES);
-        Log.d(TAG, "create sql scrobbles: " + DATABASE_CREATE_SCROBBLES);
-        Log.d(TAG, "create sql corrnetapp: " + DATABASE_CREATE_CORRNETAPP);
-        
-        mDb.execSQL(DATABASE_CREATE_SCROBBLES);
-        mDb.execSQL(DATABASE_CREATE_CORRNETAPP);
-        // Tables and trigger for updating scrobbles based on rules.
+        Log.d(TAG, "create sql corrections: " + DATABASE_CREATE_CORRECTION_RULES);
         mDb.execSQL(DATABASE_CREATE_CORRECTION_RULES);
         mDb.execSQL(DATABASE_CREATE_RULE_CHANGES);
         mDb.execSQL(TRIGGGER_CREATE_CHECK_CORRECTION_RULES);
     }
+
+
+    public void rebuildScrobblesDatabaseOnce(){
+        Log.d(TAG, "dropping sql scrobbles ");
+        mDb.execSQL("DROP TABLE IF EXISTS " + TABLENAME_SCROBBLES);
+        Log.d(TAG, "create sql scrobbles: " + DATABASE_CREATE_SCROBBLES);
+        mDb.execSQL(DATABASE_CREATE_SCROBBLES);
+    }
 }
diff --git a/app/src/main/res/layout/activity_permissions.xml b/app/src/main/res/layout/activity_permissions.xml
index 0e718a4f..baa16782 100644
--- a/app/src/main/res/layout/activity_permissions.xml
+++ b/app/src/main/res/layout/activity_permissions.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
diff --git a/app/src/main/res/layout/theme_options.xml b/app/src/main/res/layout/theme_options.xml
index 9247c476..11a1d44b 100644
--- a/app/src/main/res/layout/theme_options.xml
+++ b/app/src/main/res/layout/theme_options.xml
@@ -116,11 +116,4 @@
 
         </RadioGroup>
     </LinearLayout>
-
-    <LinearLayout
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:gravity="right"
-        android:orientation="horizontal"></LinearLayout>
 </LinearLayout>
\ No newline at end of file