Elastoplasticity - type error in training section

[acarkocabicak]

Firstly, thank you for sharing the comprehensive work on PINN. The type error occurs when executing the following scripts in the training section of the Elastoplasticity model:

fig, ax= plt.subplots(1,2, figsize=(8, 3))
loss_val = history.history["loss"]/history.history["loss"][0]
ax[0].semilogy(loss_val)
ax[0].set_xlabel('epochs')
ax[0].set_ylabel('$\\mathcal{L}/\\mathcal{L}_0$')
ax[1].semilogy(np.linspace(0, t, loss_val.size), loss_val)
ax[1].set_xlabel('time (s)')
plt.show()

TypeError: unsupported operand type(s) for /: 'list' and 'float'

I am sharing the screenshot of the error below:

I hope you can help me out with this error.
Thanks for your time and consideration.

[HumbertHumbert7]

Hi acarkocabicak, did you solved it, because I'm having some issues also with the plots