Android app stopped? Why?

My application is broke when I want try it in emulator.

Here is my Manifest file:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://ift.tt/nIICcg"
    package="com.example.jvstgs"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".QuizActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".ResultActivity"
            android:label="@string/title_activity_result" >
        </activity>
    </application>
</manifest>

and my LogCat: http://ift.tt/1JPXaGB

I don't know what's the problem, I'm newbie in this, I tried making a Quiz with SQLite, and it hasn't got error, but nit working :/.

Thanks for the help!