PHP not working but had been for years

I wrote a simple PHP page that iterates through all images in a directory and creates hyperlinks to each image. This had been working for several years until a couple days ago. I'm not seeing links to any of the images now. Does anyone know what could be going on - is PHP still supported for free websites on altervista?

Thanks

Yes, you can use PHP on AlterVista. You can change the PHP version from the control panel.

Is the code supported by your selected PHP version?

Bye!