diff --git a/functions.php b/functions.php
index fb5a01e..b643477 100644
--- a/functions.php
+++ b/functions.php
@@ -5273,7 +5273,7 @@ function argon_get_duolingo_data($force_refresh = false) {
         }
     }
     
-    $url = 'https://www.duolingo.com/2017-06-30/users?username=' . urlencode($username) . '&fields=streak,streakData%7BcurrentStreak,previousStreak%7D';
+    $url = 'https://www.duolingo.com/2017-06-30/users?username=' . urlencode($username) . '&fields=users%7Bstreak,streakData%7BcurrentStreak,previousStreak%7D%7D';
     
     $response = wp_remote_get($url, array(
         'timeout' => 15,
diff --git a/functions_original.php b/functions_original.php
deleted file mode 100644
index bec1792..0000000
Binary files a/functions_original.php and /dev/null differ
diff --git a/settings.php b/settings.php
index 9d56303..9d1ebbe 100644
--- a/settings.php
+++ b/settings.php
@@ -1521,7 +1521,7 @@ function themeoptions_page(){
 
 						<td>
 
-							<input name="argon_duolingo_username" type="text" class="regular-text" value="<?php echo get_option('argon_duolingo_username', ''); ?>" placeholder="<?php _e('输入多邻国用户名', 'argon');?>">
+							<input name="argon_duolingo_username" type="text" class="regular-text" value="<?php echo get_option('argon_duolingo_username', ''); ?>">
 
 							<p class="description"><?php _e('填写你的多邻国用户名以自动获取连胜天数（需要在多邻国隐私设置中开启公开资料）', 'argon');?></p>
 
@@ -6879,7 +6879,7 @@ function argon_update_themeoptions(){
 
 		argon_update_option('argon_show_duolingo_streak');
 		argon_update_option('argon_duolingo_username');
-		
+
 		delete_option('argon_duolingo_email');
 		delete_transient('argon_duo_login_error');
 
diff --git a/settings_original.php b/settings_original.php
deleted file mode 100644
index 95011bb..0000000
Binary files a/settings_original.php and /dev/null differ