diff --git a/Admin/Install/Navigation.install.json b/Admin/Install/Navigation.install.json
index 0a59114..99153b8 100755
--- a/Admin/Install/Navigation.install.json
+++ b/Admin/Install/Navigation.install.json
@@ -18,7 +18,7 @@
                 "pid": "/sales/bill",
                 "type": 3,
                 "subtype": 1,
-                "name": "List",
+                "name": "Open",
                 "uri": "{/prefix}sales/bill/list",
                 "target": "self",
                 "icon": null,
@@ -79,7 +79,7 @@
                 "pid": "/purchase/bill",
                 "type": 3,
                 "subtype": 1,
-                "name": "List",
+                "name": "Open",
                 "uri": "{/prefix}purchase/bill/list",
                 "target": "self",
                 "icon": null,
@@ -211,5 +211,36 @@
         "permission": { "permission": 2, "type": null, "element": null },
         "parent": 1001602001,
         "children": []
+    },
+    {
+        "id": 1005108001,
+        "pid": "/purchase/analysis",
+        "type": 3,
+        "subtype": 1,
+        "name": "Bill",
+        "uri": "{/prefix}purchase/analysis/bill",
+        "target": "self",
+        "icon": null,
+        "order": 15,
+        "from": "Billing",
+        "permission": { "permission": 2, "type": null, "element": null },
+        "parent": 1001602001,
+        "children": []
+    },
+    {
+        "id": 1005109001,
+        "pid": "/",
+        "type": 2,
+        "subtype": 1,
+        "name": "Billing",
+        "uri": "{/prefix}private/billing/dashboard?{?}",
+        "target": "self",
+        "icon": null,
+        "order": 5,
+        "from": "Billing",
+        "permission": { "permission": 2, "type": null, "element": null },
+        "parent": 1003401001,
+        "children": [
+        ]
     }
 ]
diff --git a/Admin/Install/db.json b/Admin/Install/db.json
index bb0593a..06b640a 100755
--- a/Admin/Install/db.json
+++ b/Admin/Install/db.json
@@ -606,5 +606,50 @@
                 "foreignKey": "editor_doc_id"
             }
         }
+    },
+    "billing_bill_responsible": {
+        "name": "billing_bill_responsible",
+        "fields": {
+            "billing_bill_responsible_id": {
+                "name": "billing_bill_responsible_id",
+                "type": "INT",
+                "null": false,
+                "primary": true,
+                "autoincrement": true
+            },
+            "billing_bill_responsible_bill": {
+                "name": "billing_bill_responsible_bill",
+                "type": "INT",
+                "null": false,
+                "foreignTable": "billing_bill",
+                "foreignKey": "billing_bill_id"
+            },
+            "billing_bill_responsible_group": {
+                "name": "billing_bill_responsible_group",
+                "type": "INT",
+                "null": false,
+                "foreignTable": "group",
+                "foreignKey": "group_id"
+            },
+            "billing_bill_responsible_account": {
+                "name": "billing_bill_responsible_account",
+                "type": "INT",
+                "null": false,
+                "foreignTable": "account",
+                "foreignKey": "account_id"
+            },
+            "billing_bill_responsible_forwarded_by": {
+                "name": "billing_bill_responsible_forwarded_by",
+                "type": "INT",
+                "null": false,
+                "foreignTable": "account",
+                "foreignKey": "account_id"
+            },
+            "billing_bill_responsible_forwarded_at": {
+                "name": "billing_bill_responsible_forwarded_at",
+                "type": "DATETIME",
+                "null": false
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index 45a8dd1..ef62789 100755
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -29,6 +29,7 @@ use Modules\ClientManagement\Models\ClientMapper;
 use Modules\ItemManagement\Models\ItemMapper;
 use Modules\Media\Models\CollectionMapper;
 use Modules\Media\Models\MediaMapper;
+use Modules\Media\Models\NullCollection;
 use Modules\Media\Models\NullMedia;
 use Modules\Media\Models\PathSettings;
 use Modules\Media\Models\UploadStatus;
@@ -285,7 +286,7 @@ final class ApiController extends Controller
                 if ($collection === null) {
                     $collection = MediaMapper::getParentCollection($path)->limit(1)->execute();
 
-                    if ($collection instanceof NullMedia) {
+                    if ($collection instanceof NullCollection) {
                         $collection = $this->app->moduleManager->get('Media')->createRecursiveMediaCollection(
                             '/Modules/Media/Files',
                             $path,
diff --git a/Theme/Backend/Lang/Navigation.en.lang.php b/Theme/Backend/Lang/Navigation.en.lang.php
index 159ee6b..8eaf2f2 100644
--- a/Theme/Backend/Lang/Navigation.en.lang.php
+++ b/Theme/Backend/Lang/Navigation.en.lang.php
@@ -13,6 +13,7 @@
 declare(strict_types=1);
 
 return ['Navigation' => [
+    'Open' => 'Open',
     'Archive' => 'Archive',
     'Bill'    => 'Bill',
     'Billing' => 'Billing',
diff --git a/Theme/Backend/purchase-bill.tpl.php b/Theme/Backend/purchase-bill.tpl.php
index ec65d7c..4bbad90 100755
--- a/Theme/Backend/purchase-bill.tpl.php
+++ b/Theme/Backend/purchase-bill.tpl.php
@@ -218,7 +218,7 @@ echo $this->getData('nav')->render(); ?>
                     <section id="mediaFile" class="portlet">
                         <div class="portlet-body">
                             <?php if (!($original instanceof NullMedia)) : ?>
-                            <iframe style="min-height: 600px;" data-form="iUiSettings" data-name="iframeHelper" id="iHelperFrame" src="<?= UriFactory::build('{/backend}Resources/mozilla/Pdf/web/viewer.html{?}&file=' . (($original->isAbsolute ? '' : '/../../../../') . $original->getPath())); ?>" allowfullscreen></iframe>
+                            <iframe style="min-height: 600px;" data-form="iUiSettings" data-name="iframeHelper" id="iHelperFrame" src="<?= UriFactory::build('{/backend}Resources/mozilla/Pdf/web/viewer.html{?}&file=' . \urlencode(($original->isAbsolute ? '' : '/../../../../') . $original->getPath())); ?>" allowfullscreen></iframe>
                             <?php endif; ?>
                         </div>
                     </section>