deploy vb.net project with sqlite database

i made a very basic vb.net application with SQLite database to learn the concept of deployment. this is the code to display the data of a table of SQLite databse.

Imports System.Data.SQLite Imports System.Data.SqlClient Public Class Form1 Dim con As New SQLiteConnection

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    displaydata()
End Sub
Public Function displaydata()
    con.ConnectionString = "Data Source=walnutdatabse.s3db"
    con.Open()
    Dim query As String = "select * from walnut_contacts"
    Dim da As New SQLiteDataAdapter((query), con)
    Dim table As New DataTable
    table.Locale = System.Globalization.CultureInfo.InvariantCulture
    da.Fill(table)
    BindingSource1.DataSource = table
    DataGridView1.DataSource = BindingSource1
    con.Close()
    Return Nothing
End Function

this application is running well but when i publish it or deploy it , it doesn't run . anybody having any hint ?