Fixed the UI erroring out, also dont show tv with no externals

src/Ombi.Api.FanartTv/FanartTvApi.cs

@@ -2,6 +2,7 @@
 using System.Net.Http;
 using System.Runtime.CompilerServices;
 using System.Threading.Tasks;
+using Newtonsoft.Json;
 using Ombi.Api.FanartTv.Models;
 
 namespace Ombi.Api.FanartTv
@@ -20,8 +21,15 @@ namespace Ombi.Api.FanartTv
         {
             var request = new Request($"tv/{tvdbId}", Endpoint, HttpMethod.Get);
             request.AddHeader("api-key", token);
-
-            return await Api.Request<TvResult>(request);
+            try
+            {
+                return await Api.Request<TvResult>(request);
+            }
+            catch (JsonSerializationException)
+            {
+                // Usually this is when it's not found
+                return null;
+            }
         }
 
         public async Task<MovieResult> GetMovieImages(int theMovieDbId, string token)

src/Ombi/Controllers/SearchController.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 
 using Microsoft.AspNetCore.Authorization;
@@ -134,6 +135,7 @@ namespace Ombi.Controllers
         [HttpGet("tv/info/{tvdbId}/tree")]
         public async Task<TreeNode<SearchTvShowViewModel>> GetShowInfoTreeNode(int tvdbId)
         {
+            if (tvdbId == 0) return new TreeNode<SearchTvShowViewModel>();
             return await TvEngine.GetShowInformationTreeNode(tvdbId);
         }