diff --git a/Tranga/Connectors/MangaDex.cs b/Tranga/Connectors/MangaDex.cs
index 39150b0..acfe325 100644
--- a/Tranga/Connectors/MangaDex.cs
+++ b/Tranga/Connectors/MangaDex.cs
@@ -62,17 +62,25 @@ public class MangaDex : Connector
                     if(tagObject!["attributes"]!["name"]!.AsObject().ContainsKey("en"))
                         tags.Add(tagObject!["attributes"]!["name"]!["en"]!.GetValue<string>());
                 }
-                
-                JsonArray relationships = manga["relationships"]!.AsArray();
-                string poster = relationships.FirstOrDefault(relationship => relationship["type"].GetValue<string>() == "cover_art")["id"].GetValue<string>();
 
-                JsonObject linksObject = attributes["links"]!.AsObject();
-                string[,] links = new string[linksObject.Count, 2];
-                int linkIndex = 0;
-                foreach (string key in ((IDictionary<string, JsonNode?>)linksObject).Keys)
+                string? poster = null;
+                if (manga.ContainsKey("relationships") && manga["relationships"] is not null)
                 {
-                    links[linkIndex, 0] = key;
-                    links[linkIndex++, 1] = linksObject[key]!.GetValue<string>();
+                    JsonArray relationships = manga["relationships"]!.AsArray();
+                    poster = relationships.FirstOrDefault(relationship => relationship!["type"]!.GetValue<string>() == "cover_art")!["id"]!.GetValue<string>();
+                }
+
+                string[,]? links = null;
+                if (attributes.ContainsKey("links") && attributes["links"] is not null)
+                {
+                    JsonObject linksObject = attributes["links"]!.AsObject();
+                    links = new string[linksObject.Count, 2];
+                    int linkIndex = 0;
+                    foreach (string key in ((IDictionary<string, JsonNode?>)linksObject).Keys)
+                    {
+                        links[linkIndex, 0] = key;
+                        links[linkIndex++, 1] = linksObject[key]!.GetValue<string>();
+                    }
                 }
                 
                 int? year = attributes.ContainsKey("year") && attributes["year"] is not null
diff --git a/Tranga/Publication.cs b/Tranga/Publication.cs
index 5be193a..bea9539 100644
--- a/Tranga/Publication.cs
+++ b/Tranga/Publication.cs
@@ -6,8 +6,8 @@ public struct Publication
     public string[,] altTitles { get;  }
     public string? description { get; }
     public string[] tags { get; }
-    public string posterUrl { get; } //maybe there is a better way?
-    public string[,] links { get; }
+    public string? posterUrl { get; } //maybe there is a better way?
+    public string[,]? links { get; }
     public int? year { get; }
     public string? originalLanguage { get; }
     public string status { get; }
@@ -15,7 +15,7 @@ public struct Publication
     public Connector connector { get; }
     public string downloadUrl { get; }
 
-    public Publication(string sortName, string? description, string[,] altTitles, string[] tags, string posterUrl, string[,] links, int? year, string? originalLanguage, string status, Connector connector, string downloadUrl)
+    public Publication(string sortName, string? description, string[,] altTitles, string[] tags, string? posterUrl, string[,]? links, int? year, string? originalLanguage, string status, Connector connector, string downloadUrl)
     {
         this.sortName = sortName;
         this.description = description;