Unhandled exception "Invalid Object name"

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C#

SQL

i get this Unhandled exception.
Invalid object name dbo.FakturaDb_Faktura

But the table name is like that, whats the problem?

var dt = new DataTable();

           const string constring = @"Data Source = MARTIN; Initial Catalog = FakturaDB;Integrated Security = True";
           using (var con = new SqlConnection(constring))
           {
               using (var cmd = new SqlCommand("SELECT * FROM dbo.FakturaDB_Faktura", con))
               {
                   dataGridViewAllaFakturor.ColumnCount = 1;
                   cmd.CommandType = CommandType.Text;
                   using (var sda = new SqlDataAdapter(cmd))
                   {

                       sda.Fill(dt);
                       dataGridViewAllaFakturor.AutoGenerateColumns = false;
                       dataGridViewAllaFakturor.ReadOnly = true;


                       dataGridViewAllaFakturor.Columns[0].DataPropertyName = "FakturaNr";
                       dataGridViewAllaFakturor.Columns[0].Name = "FakturaNr";
                       dataGridViewAllaFakturor.Columns[0].HeaderText = @"FakturaNr";