Getting a error : Invalid object name 'User_Information

SqlCommand cmd = new SqlCommand("sp_userinformation", con);
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.AddWithValue("@UserName", UserName);
                cmd.Parameters.AddWithValue("@Password", Password);
                cmd.Parameters.AddWithValue("@FirstName", FirstName);
                cmd.Parameters.AddWithValue("@LastName",LastName );
                cmd.Parameters.AddWithValue("@Email",Email );
                cmd.Parameters.AddWithValue("@PhoneNO", Phoneno);
                cmd.Parameters.AddWithValue("@Location", Location);
                cmd.Parameters.AddWithValue("@Created_By", Created_By);
                cmd.Parameters.Add("@ERROR", SqlDbType.Char, 500);
                cmd.Parameters["@ERROR"].Direction = ParameterDirection.Output;
                cmd.ExecuteNonQuery();
                message = (string)cmd.Parameters["@ERROR"].Value;
                con.Close();
            }
            else
            {
                Page.RegisterStartupScript("UserMsg", "<Script language='javascript'>alert('" + "Password mismatch" + "'); </script>");
            }
            lblErrorMsg.Text = message;

if (txtpwd.Text == txtcnmpwd.Text)
 {
 string UserName = txtuser.Text;
 string Password = txtpwd.Text;
 string ConfirmPassword = txtcnmpwd.Text;
 string FirstName = txtfname.Text;
 string LastName = txtlname.Text;
 string Email = txtEmail.Text;
 string Phoneno = txtphone.Text;
 string Location = txtlocation.Text;
 string Created_By = txtuser.Text;