diff --git a/backend/app/Http/Controllers/Api/AuthenticationTrait.php b/backend/app/Http/Controllers/Api/AuthenticationTrait.php
index 21ddfcd1..73d1caa8 100644
--- a/backend/app/Http/Controllers/Api/AuthenticationTrait.php
+++ b/backend/app/Http/Controllers/Api/AuthenticationTrait.php
@@ -130,7 +130,7 @@ trait AuthenticationTrait {
         // セッションを想像する
         $login_user_datum = $this->makeSession($this->getGuard(), $get->toArray());
 
-        return ['status_code' => 200, 'params' => ['id' => $login_user_datum['id'], 'expire' => $expire * 1000]];
+        return ['status_code' => 200, 'params' => ['id' => $login_user_datum['id'], 'expire' => (int)$expire * 1000]];
     }
 
     public function logout () {
diff --git a/backend/app/Http/Controllers/Api/FilesController.php b/backend/app/Http/Controllers/Api/FilesController.php
index 621c43fe..ab883027 100644
--- a/backend/app/Http/Controllers/Api/FilesController.php
+++ b/backend/app/Http/Controllers/Api/FilesController.php
@@ -33,7 +33,7 @@ class FilesController extends Controller {
                 // 子供
                 if (session()->has('children')) {
                     // ミーティング
-                    if (null !== ($rel = FatherRelation::where('child_id', (int)session()->get('children')['id'])->first())) {
+                    foreach ($rel = FatherRelation::where('child_id', (int)session()->get('children')['id'])->get() as $rel) {
                         if (null !== (Meeting::where('father_id', $rel->father_id)->where('pdf', '/files/'.$path)->first())) {
                             $got = true;
                         }
@@ -55,7 +55,7 @@ class FilesController extends Controller {
                 if (null !== ($meetimg = MeetingImage::where('image', '/files/'.$path)->first())) {
                     // 子供
                     if (session()->has('children')) {
-                        if (null !== ($rel = FatherRelation::where('child_id', (int)session()->get('children')['id'])->first())) {
+                        foreach (FatherRelation::where('child_id', (int)session()->get('children')['id'])->get() as $rel) {
                             if (null !== (Meeting::where('id', $meetimg->meeting_id)->where('father_id', $rel->father_id)->first())) {
                                 $got = true;
                             }