app terminates after launched in ios device in xamarin

I am trying to debug my xamarin application in ios device.but after lunch successfully it terminates and debugger gets detached.

Message in output window is :

Launching 'FormBot.iOS' on 'Testsoft's iPhone'... The app has been terminated.

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">

    <dict>
    <key>UIDeviceFamily</key>
    <array>
        <integer>1</integer>
        <integer>2</integer>
    </array>
    <key>UISupportedInterfaceOrientations</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>UIAppFonts</key>
    <array>
        <string>Fonts/proximanovalight.ttf</string>
    </array>
    <key>UISupportedInterfaceOrientations~ipad</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationPortraitUpsideDown</string>
        <string>UIInterfaceOrientationLandscapeLeft</string>
        <string>UIInterfaceOrientationLandscapeRight</string>
    </array>
    <key>MinimumOSVersion</key>
    <string>6.0</string>
    <key>CFBundleDisplayName</key>
    <string>GreenBot</string>
    <key>CFBundleIdentifier</key>
    <string>com.tatvasoft.allxamarin</string>
    <key>CFBundleVersion</key>
    <string>1</string>
    <key>CFBundleIconFiles</key>
    <array>
        <string>Icon-72@2x.png</string>
        <string>Icon-72.png</string>
        <string>Icon@2x.png</string>
        <string>Icon.png</string>
        <string>Icon-60@2x.png</string>
        <string>Icon-76.png</string>
        <string>Icon-76@2x.png</string>
        <string>Default.png</string>
        <string>Default@2x.png</string>
        <string>Default-568h@2x.png</string>
        <string>Default-Landscape.png</string>
        <string>Default-Landscape@2x.png</string>
        <string>Default-Portrait.png</string>
        <string>Default-Portrait@2x.png</string>
        <string>Icon-Small-50@2x.png</string>
        <string>Icon-Small-50.png</string>
        <string>Icon-Small-40.png</string>
        <string>Icon-Small-40@2x.png</string>
        <string>Icon-Small.png</string>
        <string>Icon-Small@2x.png</string>
    </array>
    <key>NSLocationWhenInUseUsageDescription</key>
    <string></string>
    <key>CFBundleShortVersionString</key>
    <string>1.3</string>
    <key>UIRequiresFullScreen</key>
    <string>YES</string>
    <key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsArbitraryLoads</key>
        <true/>
    </dict>
    <key>NSCameraUsageDescription</key>
    <string>This app needs access to the camera to take photos.</string>
    <key>NSPhotoLibraryUsageDescription</key>
    <string>This app needs access to photos.</string>
</dict>
</plist>

please help.Thanks in advance.