diff --git a/src/Site/Lib/Auth.php b/src/Site/Lib/Auth.php
index 02dcb60..5ec7950 100644
--- a/src/Site/Lib/Auth.php
+++ b/src/Site/Lib/Auth.php
@@ -4,9 +4,6 @@ namespace Site\Lib;
 class Auth {
   private int $id;
 
-  /**
-   * 性別： -1 = 不明, 0 = 男性, 1 = 女性
-   */
   private \stdClass $user;
   private \stdClass $pubUser;
   private ?string $token;
@@ -39,7 +36,7 @@ class Auth {
     unset($user->password);
     unset($user->tokens);
     $myself = $this->getUserData();
-    if ($myself->id != $user->id && $myself->role < \Roles::STAFF) $user->email = '（秘密）';
+    if (!$myself || ($myself->id != $user->id && $myself->role < \Roles::STAFF)) $user->email = '（秘密）';
     $user->name = namecolor($user);
     $user->regDate = date('Y年m月d日', $user->regDate);
     $user->gender = $user->gender === \Gender::MALE ? '男' : ($user->gender === \Gender::FEMALE ? '女' : '不明');
@@ -298,7 +295,7 @@ class Auth {
     return $id;
   }
 
-  private function getUserData(): \stdClass {
+  private function getUserData(): ?\stdClass {
     if (!AUTH_ENABLED) return new \stdClass;
     $file = scandir($this->dataDir);
     $userFile = "";