Throw error messages when exception occurs while browsing an archive

LANCommander/Components/FileManagerComponents/FileManager.razor

@@ -238,6 +238,8 @@
     }
 
     async Task<HashSet<FileManagerDirectory>> GetArchiveDirectoriesAsync(Guid archiveId)
+    {
+        try
         {
             var entries = await ArchiveService.GetContents(archiveId);
             var directories = new HashSet<FileManagerDirectory>();
@@ -258,6 +260,17 @@
                 root
             };
         }
+        catch (FileNotFoundException ex)
+        {
+            MessageService.Error("Could not open archive! Is it missing?");
+        }
+        catch (Exception ex)
+        {
+            MessageService.Error("An unknown error occurred trying to open the archive");
+        }
+
+        return new HashSet<FileManagerDirectory>();
+    }
 
     string GetEntryName(IFileManagerEntry entry)
     {