fail silently if url can not be resolved

ModpackUpdater.Apps.Manager/Features/SharedFunctions.cs

@@ -122,11 +122,18 @@ internal static class SharedFunctions
         foreach (var action in actions)
         {
             if (action.SourceType != SourceType.DirectLink)
+            {
+                try
                 {
                     Task.Run(async () =>
                     {
                         action.SourceUrl = await factory.ResolveSourceUrl(action);
                     }).Wait();
+                }
+                catch (Exception)
+                {
+                    // Fail silently
+                }
                 api.UpdateItem(action);
             }
         }