Get a blank page when wp-load.php is included

This is happening on a page for a plugin, but I’ve commented everything out but that one line, so I know just the include is causing the blank page. I’ve also changed the path to make it wrong, and I get an error saying file isn’t found. So I know it’s finding the file, and I know it’s pulling it in, but I don’t know why it results in a blank page.