diff --git a/app/src/main/java/com/ouxuan/oxface/OXFaceOnlineActivity.java b/app/src/main/java/com/ouxuan/oxface/OXFaceOnlineActivity.java
index e7da750..00dc24c 100644
--- a/app/src/main/java/com/ouxuan/oxface/OXFaceOnlineActivity.java
+++ b/app/src/main/java/com/ouxuan/oxface/OXFaceOnlineActivity.java
@@ -2093,7 +2093,7 @@ public class OXFaceOnlineActivity extends BaseActivity implements View.OnClickLi
                     if (bitmap != null && !bitmap.isRecycled()) {
                         bitmap.recycle();
                     }
-                    return "dummy_base64_placeholder";
+                    return null;
                 }
             }
         }
diff --git a/app/src/main/java/com/ouxuan/oxface/utils/LogManager.java b/app/src/main/java/com/ouxuan/oxface/utils/LogManager.java
index ef56ede..0645811 100644
--- a/app/src/main/java/com/ouxuan/oxface/utils/LogManager.java
+++ b/app/src/main/java/com/ouxuan/oxface/utils/LogManager.java
@@ -173,6 +173,7 @@ public class LogManager {
         if (instance != null) {
             instance.addLogEntry("ERROR", tag, message, throwable);
         }
+        android.util.Log.e(tag,message); //切换为logcat输入日志
     }
     
     /**