AMP version pages is not generated

Hi,
for the various pages of the blog the AMP version is not generated, for example:
for the page – https://www.morelliamministrazioneimmobili.it/blog/3/
the AMP page – https://www.morelliamministrazioneimmobili.it/blog/3/amp/ is not created.
While it is instead created for the main page of the blog https://www.morelliamministrazioneimmobili.it/blog/
Can you help me?

Best regards
Cristian

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