diff --git a/HSUCO_Cargo_Garage_Operation_Program/CustomUserControl/UserList.cs b/HSUCO_Cargo_Garage_Operation_Program/CustomUserControl/UserList.cs
index 166b2c1..5981267 100644
--- a/HSUCO_Cargo_Garage_Operation_Program/CustomUserControl/UserList.cs
+++ b/HSUCO_Cargo_Garage_Operation_Program/CustomUserControl/UserList.cs
@@ -400,6 +400,7 @@ namespace HSUCO_Cargo_Garage_Operation_Program.CustomUserControl
             var result = MetroMessageBox.Show(this, "발급 하시겠습니까?", "증명서 발급", MessageBoxButtons.YesNo,
                 MessageBoxIcon.Question);
             if (result == DialogResult.No) return;
+
             string no = dataGridView_List.SelectedRows[0].Cells[0].Value.ToString();
             CertificateInformation certificateInformation = Database.GetUserCertificate(no);
 
diff --git a/HSUCO_Cargo_Garage_Operation_Program/CustomUserControl/WaitingList.cs b/HSUCO_Cargo_Garage_Operation_Program/CustomUserControl/WaitingList.cs
index b53358a..f67af1d 100644
--- a/HSUCO_Cargo_Garage_Operation_Program/CustomUserControl/WaitingList.cs
+++ b/HSUCO_Cargo_Garage_Operation_Program/CustomUserControl/WaitingList.cs
@@ -141,7 +141,7 @@ namespace HSUCO_Cargo_Garage_Operation_Program.CustomUserControl
 
         private void metroButton_UpdateUser_Click(object sender, EventArgs e)
         {
-            var count = dataGridView_List.Rows.Count - 1;
+            var count = dataGridView_List.Rows.Count;
             if (count == 0) return;
 
             Promotion promotion = new Promotion("대기자 이용기간");
diff --git a/HSUCO_Cargo_Garage_Operation_Program/Database.cs b/HSUCO_Cargo_Garage_Operation_Program/Database.cs
index 0f1f2ef..b7813b5 100644
--- a/HSUCO_Cargo_Garage_Operation_Program/Database.cs
+++ b/HSUCO_Cargo_Garage_Operation_Program/Database.cs
@@ -564,7 +564,7 @@ namespace HSUCO_Cargo_Garage_Operation_Program
         public static void DeleteUser(string no)
         {
             DateTime endDate = new DateTime();
-            var query = $"SELECT DateEnd FROM UserList Where No='{no}'";
+            var query = $"SELECT DateStart FROM UserList Where No='{no}'";
             using (var command = _sqLiteConnection.CreateCommand())
             {
                 command.CommandText = query;