use rmtree with ignore_errors=True

app.py

@@ -66,8 +66,8 @@ n_models = len(rst_names)
 
 
 def fast_yolo_crop(image):
-    rmtree(working / 'results_ensemble')
-    os.makedirs(working / 'labels', exist_ok=True)
+    rmtree(working / 'labels', ignore_errors=True)
+    rmtree(working / 'results_ensemble', ignore_errors=True)
 
     mpimg.imsave(yolo_source, image)