Update app.py

app.py

@@ -51,7 +51,7 @@ def check_image_similarity(main_image_folder, compare_image_folder):
     return result
 
 def compare_photoshoot_crops(photo_shoot_id, main_image_folder, compare_image_folder):
-    if compare_image_key == "":
+    if compare_image_folder == "":
         folder = "PhotoShoots/" + str(photo_shoot_id) + "/Croppeds"
         files = AwsService.get_files_from_s3(os.environ.get('AWS_S3_BUCKET'), folder)
         results = []