--- a/dialogs/ConnectionDialog.py	Thu Jul 07 21:41:35 2022 +0200
+++ b/dialogs/ConnectionDialog.py	Mon Jul 11 22:21:20 2022 +0200
@@ -93,7 +93,7 @@
         self.MainSizer.Add(
             self.ButtonSizer, border=20,
             flag=wx.ALIGN_RIGHT | wx.BOTTOM | wx.LEFT | wx.RIGHT)
-        self.ColumnSizer.RemoveSizer(self.RightGridSizer)
+        self.ColumnSizer.Remove(self.RightGridSizer)
 
         # Add button for applying connection name modification to all connection
         # of POU