Fixed: Convert Trakt list name to URL slug

src/NzbDrone.Common/Extensions/StringExtensions.cs

@@ -165,5 +165,28 @@ namespace NzbDrone.Common.Extensions
         {
             return source.Contains(value, StringComparer.InvariantCultureIgnoreCase);
         }
+                
+        public static string ToUrlSlug(this string value)
+        {
+            //First to lower case
+            value = value.ToLowerInvariant();
+
+            //Remove all accents
+            value = value.RemoveAccent();
+
+            //Replace spaces
+            value = Regex.Replace(value, @"\s", "-", RegexOptions.Compiled);
+
+            //Remove invalid chars
+            value = Regex.Replace(value, @"[^a-z0-9\s-_]", "", RegexOptions.Compiled);
+
+            //Trim dashes from end
+            value = value.Trim('-', '_');
+
+            //Replace double occurences of - or _
+            value = Regex.Replace(value, @"([-_]){2,}", "$1", RegexOptions.Compiled);
+
+            return value;
+        }
     }
 }

src/NzbDrone.Core/ImportLists/Trakt/List/TraktListRequestGenerator.cs

@@ -26,9 +26,7 @@ namespace NzbDrone.Core.ImportLists.Trakt.List
         {
             var link = Settings.BaseUrl.Trim();
 
-            var listName = Settings.Listname.Trim();
-
-            link += $"/users/{Settings.Username.Trim()}/lists/{listName}/items/shows?limit={Settings.Limit}";
+            link += $"/users/{Settings.Username.Trim()}/lists/{Settings.Listname.ToUrlSlug()}/items/shows?limit={Settings.Limit}";
 
             var request = new ImportListRequest($"{link}", HttpAccept.Json);