How to resolve an AccessViolationException?

Overview: I'm calling an Init method from my DatabaseHelper class to init the SQLLite database attached to the solution. But when I call Init() I get an AccessViolationException.

Question: How can I debug the AccessViolationException further? There isn't an inner exception in the error detail.

Error Log:(no inner exception on the error)

 System.AccessViolationException was unhandled by user code
      HResult=-2147467261
      Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
      Source=Parking Tag Picker WRT
      StackTrace:
           at Parking_Tag_Picker_WRT.ViewModel.TagRequestViewModel.<GetAllZoneInfoAsync>d__0.MoveNext()
           at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
           at Parking_Tag_Picker_WRT.ViewModel.TagRequestViewModel.GetAllZoneInfoAsync()
           at Parking_Tag_Picker_WRT.TagRequestPage.OnNavigatedTo(NavigationEventArgs e)
           at Parking_Tag_Picker_WRT.MainPage.Parking_Tag_Picker_WRT.Interfaces.INavigationCallback.NavigateTo(String ItemID)
           at Parking_Tag_Picker_WRT.ViewModel.MainViewModel.set_SelectedCouncilName(CouncilName value)

Code: (During debugging it seems the Init method never gets called as debugger doesn't step into the helper class.

Calling method in VieModel -

    public async Task GetAllZoneInfoAsync()
    {
        string dbPathValue;
        int CouncilId = Int32.Parse(SelectedCouncilId);
        dbPathValue = DBPathDictonary[CouncilId];
        //Exception thrown here on the Init() call 
        IsConnected = await _dbHelper.Init(dbPathValue);

    }

DBHelper Class -

namespace Parking_Tag_Picker_WRT.Helpers
{
    public class DatabaseHelper
    {

        private SQLiteConnection dbConn;


        /// <summary>
        /// Load SQL_LiteTable from Solution   
        /// </summary>
        /// <param name="DB_PATH"></param>
        /// <returns></returns>
        public async Task<bool> Init(string dbPath)
        {


            bool isDatabaseExisting = false;

            try
            {
                StorageFile storageFile = await ApplicationData.Current.LocalFolder.GetFileAsync(dbPath);
                isDatabaseExisting = true;
            }
            catch
            {
                isDatabaseExisting = false;
            }

            if (!isDatabaseExisting)
            {
                StorageFile databaseFile = await Package.Current.InstalledLocation.GetFileAsync(dbPath);
                await databaseFile.CopyAsync(ApplicationData.Current.LocalFolder);
            }

            return true;          
        }   

    }
}