diff --git a/application/Espo/EntryPoints/Avatar.php b/application/Espo/EntryPoints/Avatar.php
index c95672c0c8..9a98997d78 100644
--- a/application/Espo/EntryPoints/Avatar.php
+++ b/application/Espo/EntryPoints/Avatar.php
@@ -77,7 +77,15 @@ class Avatar extends Image
 
         $user = $this->getEntityManager()->getEntity('User', $userId);
         if (!$user) {
-            throw new NotFound();
+            header('Content-Type: image/png');
+            $img  = imagecreatetruecolor(14, 14);
+            imagesavealpha($img, true);
+            $color = imagecolorallocatealpha($img, 127, 127, 127, 127);
+            imagefill($img, 0, 0, $color);
+            imagepng($img);
+            imagecolordeallocate($img, $color);
+            imagedestroy($img);
+            exit;
         }
 
         if (isset($_GET['attachmentId'])) {
diff --git a/application/Espo/Modules/Crm/EntryPoints/CampaignTrackOpened.php b/application/Espo/Modules/Crm/EntryPoints/CampaignTrackOpened.php
index e510f955a8..03f3ecb2b9 100644
--- a/application/Espo/Modules/Crm/EntryPoints/CampaignTrackOpened.php
+++ b/application/Espo/Modules/Crm/EntryPoints/CampaignTrackOpened.php
@@ -86,11 +86,11 @@ class CampaignTrackOpened extends \Espo\Core\EntryPoints\Base
 
         $img  = imagecreatetruecolor(1, 1);
         imagesavealpha($img, true);
-        $color = imagecolorallocatealpha($img, 0, 0, 0, 127);
+        $color = imagecolorallocatealpha($img, 127, 127, 127, 127);
         imagefill($img, 0, 0, $color);
 
         imagepng($img);
-        imagecolordeallocate($color);
+        imagecolordeallocate($img, $color);
         imagedestroy($img);
     }
 }