diff --git a/phpstan-baseline-level-4.neon b/phpstan-baseline-level-4.neon
index 1b7bb5a07..833a55afb 100644
--- a/phpstan-baseline-level-4.neon
+++ b/phpstan-baseline-level-4.neon
@@ -2631,11 +2631,6 @@ parameters:
 			count: 2
 			path: src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelper.php
 
-		-
-			message: "#^Call to method getRoleScopes\\(\\) on an unknown class Chill\\\\MainBundle\\\\Entity\\\\PermissionGroup\\.$#"
-			count: 1
-			path: src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelper.php
-
 		-
 			message: "#^Empty array passed to foreach\\.$#"
 			count: 1
diff --git a/src/Bundle/ChillMainBundle/Entity/GroupCenter.php b/src/Bundle/ChillMainBundle/Entity/GroupCenter.php
index c2e62d012..01b450394 100644
--- a/src/Bundle/ChillMainBundle/Entity/GroupCenter.php
+++ b/src/Bundle/ChillMainBundle/Entity/GroupCenter.php
@@ -31,7 +31,7 @@ class GroupCenter
      * )
      * @ORM\Cache(usage="NONSTRICT_READ_WRITE")
      */
-    private $center;
+    private ?Center $center = null;
 
     /**
      * @var int
@@ -40,83 +40,64 @@ class GroupCenter
      * @ORM\Column(name="id", type="integer")
      * @ORM\GeneratedValue(strategy="AUTO")
      */
-    private $id;
+    private ?int $id = null;
 
     /**
-     * @var PermissionsGroup
-     *
      * @ORM\ManyToOne(
      *     targetEntity="Chill\MainBundle\Entity\PermissionsGroup",
      * inversedBy="groupCenters")
      * @ORM\Cache(usage="NONSTRICT_READ_WRITE")
      */
-    private $permissionsGroup;
+    private ?PermissionsGroup $permissionsGroup = null;
 
     /**
-     * @var Collection
-     *
      * @ORM\ManyToMany(
      *     targetEntity="Chill\MainBundle\Entity\User",
      *     mappedBy="groupCenters"
      * )
+     * @var Collection<User::class>
      */
-    private $users;
+    private Collection $users;
 
     /**
      * GroupCenter constructor.
      */
     public function __construct()
     {
-        $this->permissionsGroup = new ArrayCollection();
         $this->users = new ArrayCollection();
     }
 
-    /**
-     * @return Center
-     */
-    public function getCenter()
+    public function getCenter(): ?Center
     {
         return $this->center;
     }
 
-    /**
-     * @return int
-     */
-    public function getId()
+    public function getId(): ?int
     {
         return $this->id;
     }
 
-    /**
-     * @return PermissionGroup
-     */
-    public function getPermissionsGroup()
+    public function getPermissionsGroup(): ?PermissionsGroup
     {
         return $this->permissionsGroup;
     }
 
     /**
-     * @return ArrayCollection|Collection
+     * @return Collection<User::class>
      */
-    public function getUsers()
+    public function getUsers(): Collection
     {
         return $this->users;
     }
 
-    /**
-     * @return \Chill\MainBundle\Entity\GroupCenter
-     */
-    public function setCenter(Center $center)
+    public function setCenter(Center $center): self
     {
         $this->center = $center;
 
         return $this;
     }
 
-    /**
-     * @return \Chill\MainBundle\Entity\GroupCenter
-     */
-    public function setPermissionsGroup(PermissionsGroup $permissionsGroup)
+    public function setPermissionsGroup(PermissionsGroup $permissionsGroup): self
     {
         $this->permissionsGroup = $permissionsGroup;
 
diff --git a/src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelper.php b/src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelper.php
index 828f53757..1105c9d8a 100644
--- a/src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelper.php
+++ b/src/Bundle/ChillMainBundle/Security/Authorization/AuthorizationHelper.php
@@ -120,6 +120,11 @@ class AuthorizationHelper implements AuthorizationHelperInterface
         if ($role instanceof Role) {
             $role = $role->getRole();
         }
+
+        if (!$user instanceof User) {
+            return [];
+        }
+
         /** @var array<string, Center> $centers */
         $centers = [];