Some blank pages

Good morning.

A few months ago we revamped our company website using WP. And suddenly we noticed that there are some pages that are displayed blank, while pages of the same category are displayed correctly. I have checked the source code generated by WP and it seems to be correct and the browser loads all the elements (images, js, css,…) but the page remains blank.

I use the DIVI theme, but as there are other pages using the same DIVI template correctly it doesn’t seem to be a theme problem.

If I create a new page simply with the text ‘test’ it doesn’t show it either. The site is updated to the latest version of WP and plugins. I have also tried to deactivate plugins and nothing.

For example if I start from the following screen: https://factumfoundation.org/technology/2-5d-digitisation/lucida-3d-scanner/ in the sidebar there are links to 5 other screens, two of which are displayed correctly and 3 are blank.

https://factumfoundation.org/our-projects/digitisation/lucida-lab-milan-a-studio/ -> OK
https://factumfoundation.org/technology/digitisation/lucida-3d-scanner/recording-with-the-lucida-3d-scanner/ -> blank page
https://factumfoundation.org/technology/digitisation/lucida-3d-scanner/visualising-rematerialising-lucida-data/ -> blank page
https://factumfoundation.org/technology/digitisation/lucida-3d-scanner/developing-the-lucida-3d-scanner/ -> blank page
https://factumfoundation.org/technology/digital-output/high-resolution-viewers/ -> OK

If anyone can give me some guidance as to the cause of the white screen I would be very grateful.

Thank you.

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