diff --git a/Kyoo.Transcoder/src/Stream.h b/Kyoo.Transcoder/src/Stream.h
index 5f6ce62f..536157d4 100644
--- a/Kyoo.Transcoder/src/Stream.h
+++ b/Kyoo.Transcoder/src/Stream.h
@@ -25,8 +25,11 @@ extern "C" struct Stream
 	{
 		if(title != NULL)
 			this->title= _strdup(title);
-		if(languageCode != NULL)
+
+		if (languageCode != NULL)
 			language = _strdup(languageCode);
+		else
+			language = _strdup("und");
 
 		if (codec != NULL)
 			this->codec = _strdup(codec);
diff --git a/Kyoo.Transcoder/src/Transcoder.cpp b/Kyoo.Transcoder/src/Transcoder.cpp
index dbb7b635..3e8e6a9d 100644
--- a/Kyoo.Transcoder/src/Transcoder.cpp
+++ b/Kyoo.Transcoder/src/Transcoder.cpp
@@ -226,9 +226,11 @@ Stream *ExtractSubtitles(const char *path, const char *outPath, int *streamCount
 		{
 			*subtitleCount += 1;
 
+			AVDictionaryEntry *languagePtr = av_dict_get(inputStream->metadata, "language", NULL, 0);
+
 			//Get metadata for file name
 			streams[i] = Stream(NULL, //title
-				av_dict_get(inputStream->metadata, "language", NULL, 0)->value, //language
+				languagePtr ? languagePtr->value : NULL, //language
 				avcodec_get_name(inputCodecpar->codec_id), //format
 				inputStream->disposition & AV_DISPOSITION_DEFAULT, //isDefault
 				inputStream->disposition & AV_DISPOSITION_FORCED);  //isForced
diff --git a/Kyoo/InternalAPI/ThumbnailsManager/ThumbnailsManager.cs b/Kyoo/InternalAPI/ThumbnailsManager/ThumbnailsManager.cs
index 896f694a..b213d804 100644
--- a/Kyoo/InternalAPI/ThumbnailsManager/ThumbnailsManager.cs
+++ b/Kyoo/InternalAPI/ThumbnailsManager/ThumbnailsManager.cs
@@ -68,7 +68,7 @@ namespace Kyoo.InternalAPI.ThumbnailsManager
                 Directory.CreateDirectory(root);
 
                 string localThumb = root + "/" + people[i].slug + ".jpg";
-                if (!File.Exists(localThumb))
+                if (people[i].imgPrimary != null && !File.Exists(localThumb))
                 {
                     using (WebClient client = new WebClient())
                     {
@@ -85,7 +85,7 @@ namespace Kyoo.InternalAPI.ThumbnailsManager
         {
             //string localThumb = Path.ChangeExtension(episode.Path, "jpg");            
             string localThumb = episode.Path.Replace(Path.GetExtension(episode.Path), "-thumb.jpg");
-            if (!File.Exists(localThumb))
+            if (episode.ImgPrimary != null && !File.Exists(localThumb))
             {
                 using (WebClient client = new WebClient())
                 {
diff --git a/Kyoo/Program.cs b/Kyoo/Program.cs
index b9c0869b..09f2b50c 100644
--- a/Kyoo/Program.cs
+++ b/Kyoo/Program.cs
@@ -1,8 +1,6 @@
 using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Hosting;
-using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Hosting;
-using System.IO;
 
 namespace Kyoo
 {
@@ -15,11 +13,6 @@ namespace Kyoo
 
         public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
             WebHost.CreateDefaultBuilder(args)
-                .ConfigureAppConfiguration((hostingContext, config) => 
-                {
-                    config.SetBasePath(Directory.GetCurrentDirectory());
-                    config.AddJsonFile("config.json", false, true);
-                })
                 .UseStartup<Startup>();
     }
 }
diff --git a/Kyoo/Transcoder/Kyoo.Transcoder.dll b/Kyoo/Transcoder/Kyoo.Transcoder.dll
index df9e8685..da525875 100644
Binary files a/Kyoo/Transcoder/Kyoo.Transcoder.dll and b/Kyoo/Transcoder/Kyoo.Transcoder.dll differ
diff --git a/Kyoo/appsettings.json b/Kyoo/appsettings.json
index 8109e4f0..12d7b41d 100644
--- a/Kyoo/appsettings.json
+++ b/Kyoo/appsettings.json
@@ -1,9 +1,21 @@
 {
+  "server.urls": "http://0.0.0.0",
   "https_port": 44300,
   "Logging": {
     "LogLevel": {
       "Default": "Warning"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+
+  "databasePath": "C://Projects/database.db",
+  "tempPath": "C:\\\\Projects\\temp",
+  "peoplePath": "D:\\\\Videos\\People",
+  "plugins": "C:\\Projects\\Kyoo\\Debug",
+  "providerPlugins": "C://Projects/Plugins/Providers",
+  "libraryPaths": [
+    "\\\\sdg\\video\\Anime"
+  ],
+  "regex": ".*\\\\(?<ShowTitle>.+?) S(?<Season>\\d+)E(?<Episode>\\d+)",
+  "absoluteRegex": ".*\\\\(?<ShowTitle>.+?) (?<AbsoluteNumber>\\d+)"
 }
diff --git a/Kyoo/config.json b/Kyoo/config.json
deleted file mode 100644
index f2d16b9e..00000000
--- a/Kyoo/config.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "databasePath": "C://Projects/database.db",
-  "tempPath": "C:\\\\Projects\\temp",
-  "peoplePath": "D:\\\\Videos\\People",
-  "plugins": "C:\\Projects\\Kyoo\\Debug",
-  "providerPlugins": "C://Projects/Plugins/Providers",
-  "libraryPaths": [
-    "\\\\sdg\\video\\Anime"
-  ],
-  "regex": ".*\\\\(?<ShowTitle>.+?) S(?<Season>\\d+)E(?<Episode>\\d+)",
-  "absoluteRegex": ".*\\\\(?<ShowTitle>.+?) (?<AbsoluteNumber>\\d+)"
-}