diff --git a/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannBase.cs b/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannBase.cs
index 6abdd710e..9e2c6e06b 100644
--- a/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannBase.cs
+++ b/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannBase.cs
@@ -8,6 +8,7 @@
 using System.Text.RegularExpressions;
 using AngleSharp.Dom;
 using Microsoft.AspNetCore.WebUtilities;
+using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using NLog;
 using NzbDrone.Common.Extensions;
@@ -214,19 +215,19 @@ protected string HandleJsonSelector(SelectorBlock selector, JToken parentObj, Di
             if (selector.Selector != null)
             {
                 var selectorSelector = ApplyGoTemplateText(selector.Selector.TrimStart('.'), variables);
-                selectorSelector = JsonParseFieldSelector(parentObj, selectorSelector);
+                var fieldSelector = JsonParseFieldSelector(parentObj, selectorSelector);
 
                 JToken selection = null;
-                if (selectorSelector != null)
+                if (fieldSelector != null)
                 {
-                    selection = parentObj.SelectToken(selectorSelector);
+                    selection = parentObj.SelectToken(fieldSelector);
                 }
 
                 if (selection == null)
                 {
                     if (required)
                     {
-                        throw new Exception(string.Format("Selector \"{0}\" didn't match {1}", selectorSelector, parentObj.ToString()));
+                        throw new Exception($"Selector \"{selectorSelector}\" didn't match {parentObj.ToString(Formatting.None)}");
                     }
 
                     return null;
@@ -234,7 +235,7 @@ protected string HandleJsonSelector(SelectorBlock selector, JToken parentObj, Di
 
                 if (selection.Type is JTokenType.Array)
                 {
-                    // turn this json array into a comma delimited string
+                    // turn this json array into a comma-delimited string
                     var valueArray = selection.Value<JArray>();
                     value = string.Join(",", valueArray);
                 }
@@ -259,7 +260,7 @@ protected string HandleJsonSelector(SelectorBlock selector, JToken parentObj, Di
                 {
                     if (required)
                     {
-                        throw new Exception($"None of the case selectors \"{string.Join(",", selector.Case)}\" matched {parentObj}");
+                        throw new Exception($"None of the case selectors \"{string.Join(",", selector.Case)}\" matched {parentObj.ToString(Formatting.None)}");
                     }
 
                     return null;
diff --git a/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannParser.cs b/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannParser.cs
index 28be1c3e5..4b96e25ed 100644
--- a/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannParser.cs
+++ b/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannParser.cs
@@ -105,7 +105,7 @@ public IList<ReleaseInfo> ParseResponse(IndexerResponse indexerResponse)
                     }
                     catch (Exception ex)
                     {
-                        _logger.Trace(ex, "Failed to parse JSON rows count.");
+                        _logger.Debug(ex, "Failed to parse JSON rows count.");
                     }
                 }