Android app gives “app not installed” error when opened from menu

I have built an Android app using Android studio 2.1.2 . I have generated the signed apk and published the same to Google Play store. Users are being able to download and install it. The issue arises after the installation . In some phones(Galaxy On7,Lenovo A6000 plus) the app cannot be opened from the menu or the home screen shortcut and the error pops up saying "app not installed", but it opens fine when opened from Play Store. Can anyone suggest why this might be happening ?
This is my manifest code:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="xxxxxxxxxxxxxxxxxx"
    package="com.crm.crmenterprise">
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />
    <uses-permission android:name="android.permission.READ_LOGS" />
    <uses-permission android:name="android.permission.READ_CALL_LOG" />
    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:permission="android.permission.READ_PHONE_STATE"
            android:protectionLevel="dangerous">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".LeadActivity"
            android:label="@string/title_activity_lead"
            android:theme="@style/AppTheme">

        </activity>

    </application>

</manifest>

— modified on Mar 6, 2017, 8:18:05 AM