diff --git a/app/src/main/java/com/gh/common/util/LogUtils.java b/app/src/main/java/com/gh/common/util/LogUtils.java
index 4162058e53..1e426c5f79 100644
--- a/app/src/main/java/com/gh/common/util/LogUtils.java
+++ b/app/src/main/java/com/gh/common/util/LogUtils.java
@@ -39,13 +39,17 @@ public class LogUtils {
             object.put("article_name", articleTitle);
             object.put("tracers", tracers);
             object.put("read", readTime);
+            JSONObject columnObject = new JSONObject();
             if (specialColumn != null) {
-                JSONObject columnObject = new JSONObject();
                 columnObject.put("type", specialColumn.getType());
                 columnObject.put("name", specialColumn.getName());
                 columnObject.put("tab", specialColumn.getTab());
-                object.put("special_column", columnObject);
+            } else {
+                columnObject.put("type", "");
+                columnObject.put("name", "");
+                columnObject.put("tab", "");
             }
+            object.put("special_column", columnObject);
         } catch (JSONException e) {
             e.printStackTrace();
         }
@@ -85,13 +89,17 @@ public class LogUtils {
             object.put("tracers", tracers);
             object.put("answer_id", answerId);
             object.put("read", readTime);
+            JSONObject columnObject = new JSONObject();
             if (specialColumn != null) {
-                JSONObject columnObject = new JSONObject();
                 columnObject.put("type", specialColumn.getType());
                 columnObject.put("name", specialColumn.getName());
                 columnObject.put("tab", specialColumn.getTab());
-                object.put("special_column", columnObject);
+            } else {
+                columnObject.put("type", "");
+                columnObject.put("name", "");
+                columnObject.put("tab", "");
             }
+            object.put("special_column", columnObject);
         } catch (JSONException e) {
             e.printStackTrace();
         }
@@ -114,13 +122,17 @@ public class LogUtils {
             object.put("question_name", questions.getTitle());
             object.put("tracers", tracers);
             object.put("read", readTime);
+            JSONObject columnObject = new JSONObject();
             if (specialColumn != null) {
-                JSONObject columnObject = new JSONObject();
                 columnObject.put("type", specialColumn.getType());
                 columnObject.put("name", specialColumn.getName());
                 columnObject.put("tab", specialColumn.getTab());
-                object.put("special_column", columnObject);
+            } else {
+                columnObject.put("type", "");
+                columnObject.put("name", "");
+                columnObject.put("tab", "");
             }
+            object.put("special_column", columnObject);
         } catch (JSONException e) {
             e.printStackTrace();
         }