fix #3072 - add error handling and logging to folder creation logic

Oqtane.Server/Controllers/FileController.cs

@@ -677,7 +677,14 @@ namespace Oqtane.Controllers
                     path = Utilities.PathCombine(path, folder, Path.DirectorySeparatorChar.ToString());
                     if (!Directory.Exists(path))
                     {
-                        Directory.CreateDirectory(path);
+                        try
+                        {
+                            Directory.CreateDirectory(path);
+                        }
+                        catch (Exception ex)
+                        {
+                            _logger.Log(LogLevel.Error, this, LogFunction.Create, ex, "Unable To Create Folder {Folder}", path);
+                        }
                     }
                 }
             }