diff --git a/ModpackUpdater.Apps.Manager/Ui/MainForm.cs b/ModpackUpdater.Apps.Manager/Ui/MainForm.cs
index 6e545f5..137af9d 100644
--- a/ModpackUpdater.Apps.Manager/Ui/MainForm.cs
+++ b/ModpackUpdater.Apps.Manager/Ui/MainForm.cs
@@ -164,9 +164,9 @@ public partial class MainForm : RadForm, IMainApi
             item.Value = infos;
 
         if (infos is UpdateInfo)
-            item.Text = string.Format(GeneralLangRes.Node_Update, infos.Version.ToString());
+            item.Text = string.Format(GeneralLangRes.Node_Update, infos.Version?.ToString() ?? "?");
         else if (infos is InstallInfos)
-            item.Text = string.Format(GeneralLangRes.Node_Install, infos.Version.ToString());
+            item.Text = string.Format(GeneralLangRes.Node_Install, infos.Version?.ToString() ?? "?");
         else
             item.Text = infos.Version.ToString();
 
@@ -555,7 +555,7 @@ public partial class MainForm : RadForm, IMainApi
     private void RadMenuItem_RemoveUpdate_Click(object sender, EventArgs e)
     {
         if (radListControl_Updates.SelectedItem?.Value is UpdateInfo infos && wsInfo?.Workspace.UpdateInfos is not null
-            && RadMessageBox.Show(MsgBoxLangRes.RemoveUpdate, MsgBoxLangRes.RemoveUpdate_Title, MessageBoxButtons.YesNo, RadMessageIcon.Exclamation).IsOk())
+            && RadMessageBox.Show(MsgBoxLangRes.RemoveUpdate, MsgBoxLangRes.RemoveUpdate_Title, MessageBoxButtons.YesNo, RadMessageIcon.Exclamation).IsYes())
         {
             wsInfo.Workspace.UpdateInfos.Updates.Remove(infos);
             radListControl_Updates.Items.Remove(radListControl_Updates.SelectedItem);
diff --git a/ModpackUpdater.Apps.Manager/Ui/UpdatePropertiesEditorFlyout.cs b/ModpackUpdater.Apps.Manager/Ui/UpdatePropertiesEditorFlyout.cs
index c4937ef..154c44c 100644
--- a/ModpackUpdater.Apps.Manager/Ui/UpdatePropertiesEditorFlyout.cs
+++ b/ModpackUpdater.Apps.Manager/Ui/UpdatePropertiesEditorFlyout.cs
@@ -15,7 +15,7 @@ public partial class UpdatePropertiesEditorFlyout : RadFlyoutBase, ILoadContent
 
     public void LoadContent()
     {
-        radTextBox_Version.Text = infos.Version.ToString();
+        radTextBox_Version.Text = infos.Version?.ToString();
         radCheckBox_IsPublic.Checked = infos.IsPublic;
     }