Hi, just yesterday everything was all right, but today launching tensorboard do my computer too slow, so I reboot it and after it, tensorboard stops showing the embeddings, writing:
No checkpoint was found.
Probable causes:

No checkpoint has been saved yet. Please refresh the page periodically.
You are not saving any checkpoint. To save your model, create a tf.train.Saver and save your model periodically by calling saver.save(session, LOG_DIR/model.ckpt, step).

So, what can be the reason for it, and how to fix it?
(the logdir folder isn’t empty)