This Activity already has an action bar supplied by the window decor

02-11 12:20:19.602 30092-30092/com.elitech.offers.coupons.deals E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.elitech.offers.coupons.deals, PID: 30092
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.elitech.offers.coupons.deals/com.elitech.offers.coupons.deals.NetWork.NetworkConstatnt.NoInternetConnectionActivity_RestartApp}: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead.
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2377)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2429)
        at android.app.ActivityThread.access$800(ActivityThread.java:151)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342)
        at android.os.Handler.dispatchMessage(Handler.java:110)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:5333)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:515)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
        at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead.
        at android.support.v7.app.AppCompatDelegateImpl.setSupportActionBar(AppCompatDelegateImpl.java:345)
        at android.support.v7.app.AppCompatActivity.setSupportActionBar(AppCompatActivity.java:130)
        at com.elitech.offers.coupons.deals.NetWork.NetworkConstatnt.NoInternetConnectionActivity_RestartApp.onCreate(NoInternetConnectionActivity_RestartApp.java:41)
        at android.app.Activity.performCreate(Activity.java:5343)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2331)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2429)
        at android.app.ActivityThread.access$800(ActivityThread.java:151)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342)
        at android.os.Handler.dispatchMessage(Handler.java:110)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:5333)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:515)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
        at dalvik.system.NativeStart.main(Native Method)

        <style name="AppTheme" parent="Theme.AppCompat.Light">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/header</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/header</item>
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="drawerArrowStyle">@style/DrawerArrowStyle</item>
        <item name="actionBarStyle">@style/MyActionBar</item>
        <item name="android:itemTextAppearance">@style/MyActionBar.MenuTextStyle</item>
        <item name="android:windowDisablePreview">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:itemBackground">@color/header</item>
        <item name="android:textColorSecondary">@color/white</item>
    </style>