Fixed: Skip parsing releases without title

Closes #6030

src/NzbDrone.Common/Extensions/PathExtensions.cs

@@ -171,7 +171,7 @@ namespace NzbDrone.Common.Extensions
         {
             if (text.IsNullOrWhiteSpace())
             {
-                throw new ArgumentNullException("text");
+                throw new ArgumentNullException(nameof(text));
             }
 
             return text.IndexOfAny(Path.GetInvalidPathChars()) >= 0;

src/NzbDrone.Core/Indexers/HttpIndexerBase.cs

@@ -307,9 +307,17 @@ namespace NzbDrone.Core.Indexers
 
         protected virtual bool IsValidRelease(ReleaseInfo release)
         {
+            if (release.Title.IsNullOrWhiteSpace())
+            {
+                _logger.Trace("Invalid Release: '{0}' from indexer: {1}. No title provided.", release.InfoUrl, Definition.Name);
+
+                return false;
+            }
+
             if (release.DownloadUrl.IsNullOrWhiteSpace())
             {
-                _logger.Trace("Invalid Release: '{0}' from indexer: {1}. No Download URL provided.", release.Title, release.Indexer);
+                _logger.Trace("Invalid Release: '{0}' from indexer: {1}. No Download URL provided.", release.Title, Definition.Name);
+
                 return false;
             }
 

src/NzbDrone.Core/Parser/QualityParser.cs

@@ -67,7 +67,12 @@ namespace NzbDrone.Core.Parser
 
         public static QualityModel ParseQuality(string name)
         {
-            Logger.Debug("Trying to parse quality for {0}", name);
+            Logger.Debug("Trying to parse quality for '{0}'", name);
+
+            if (name.IsNullOrWhiteSpace())
+            {
+                return new QualityModel { Quality = Quality.Unknown };
+            }
 
             name = name.Trim();