Workaround for #440

PlexRequests.Api.Models/Sonarr/SonarrAddSeries.cs

@@ -24,6 +24,10 @@ namespace PlexRequests.Api.Models.Sonarr
 
     public class SonarrAddSeries
     {
+        public SonarrAddSeries()
+        {
+            images = new List<string>();
+        }
         public AddOptions addOptions { get; set; }
         public string title { get; set; }
         public List<Season> seasons { get; set; }
@@ -37,6 +41,7 @@ namespace PlexRequests.Api.Models.Sonarr
         public string imdbId { get; set; }
         public string titleSlug { get; set; }
         public int id { get; set; }
+        public List<string> images { get; set; }
         [JsonIgnore]
         public List<string> ErrorMessages { get; set; }
     }