a problem when trying to use python node

how can i solve this problem please?

ERROR DL Python Network Creator 3:1 Execute failed: Failed to save Keras deep learning network.
Traceback (most recent call last):
File “”, line 3, in
File “C:\Program Files\KNIME\plugins\org.knime.dl.keras_5.2.0.v202310301554\py\DLKerasNetwork.py”, line 235, in save
raise RuntimeError(‘Failed to save Keras deep learning network.’) from e
RuntimeError: Failed to save Keras deep learning network.

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