We can't display that diff, as it's actually very large. I had a quick look at the raw diff and it adds up to over 7 MB of raw text, which is far more than we can display on a web page.
What we aim to do in cases where we encounter impractically large diffs is limiting ourselves to displaying just the names of the files that were modified, combined with a few of the actual file diffs and truncate the rest. I just tried to load up that page a few times and that did work for me. Are you seeing that error consistently, or did a reload show you at least the list of filenames?