Fixed: (Cardigann) Catch errors when search.rows.count is not present

src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannParser.cs

@@ -80,6 +80,8 @@ namespace NzbDrone.Core.Indexers.Cardigann
                 }
 
                 if (search.Rows.Count != null)
+                {
+                    try
                     {
                         var countVal = HandleJsonSelector(search.Rows.Count, parsedJson, variables);
 
@@ -88,6 +90,11 @@ namespace NzbDrone.Core.Indexers.Cardigann
                             return releases;
                         }
                     }
+                    catch (Exception ex)
+                    {
+                        _logger.Trace(ex, "Failed to parse JSON rows count.");
+                    }
+                }
 
                 var rowsArray = JsonParseRowsSelector(parsedJson, search.Rows.Selector);