Howard Miller

Do you mean taking a screenshot of all of a web page - not just the bit you can see? That's not really a screenshot, I suppose.

If you're using Chrome then you might want to try the GoFullPage extension.

Having now been over this in several threads.

Moodle 4.2 (the latest) is NOT compatible with PHP 8.2. This isn't because nobody bothered to test it; it's because there are known outstanding issues. Moodle will be compatible just not yet.

Worse... that's core Moodle. Optional plugins *should* be compatible with the same range of server software as the core Moodle versions they claim compatibility with. However, to check all that is a big ask and may not always be the case.

If you choose to use 8.2 despite this then you are very much on your own.

That's what I assumed but I wanted to be clear. There's always some plugin that I've never heard of.

Simple possibility first. Are the files you are trying to upload bigger than the maximum file size allowed?