Error log at training time

Hi all. I get the following errors at training time (embeddings). Any clue for the culprit?

Converting TensorFlow Lite float32 model…
Converting TensorFlow Lite int8 quantized model…
Loading data for profiling…
Loading data for profiling OK

Creating embeddings…
[ 0/3747] Creating embeddings…
[3400/3747] Creating embeddings…
[3747/3747] Creating embeddings…
/app/keras/.venv/lib/python3.10/site-packages/sklearn/decomposition/pca.py:789: RuntimeWarning: invalid value encountered in divide
self.explained_variance_ratio
= self.explained_variance_ / total_var
/app/keras/.venv/lib/python3.10/site-packages/sklearn/manifold/_t_sne.py:1032: RuntimeWarning: invalid value encountered in divide
X_embedded = X_embedded / np.std(X_embedded[:, 0]) * 1e-4