--- ./vendor/amasty/module-banners-lite/Model/SalesRule/DeleteHandler.php	2023-07-10 17:06:28.105419013 +0300
+++ ./vendor/amasty/module-banners-lite/Model/SalesRule/DeleteHandler.php	2023-07-10 17:06:28.105419013 +0300
@@ -63,7 +63,9 @@

         /** @var \Amasty\BannersLite\Model\Banner $banner */
         foreach ($banners as $banner) {
-            $this->imageProcessor->deleteImage((string)$banner->getBannerImage());
+            if (is_object($banner) && $banner instanceof \Amasty\BannersLite\Model\Banner) {
+                $this->imageProcessor->deleteImage((string)$banner->getBannerImage());
+            }
         }
     }
 }