The short answer is 'no' and the (very) long answer is..
Yes, technically almost all of the files above can be modified with a few _1080 _720 _480 (an occasionally _HD or _SD) suffixes. But the person running the website is an honest to god amateur and I would hazard a guess is doing the 'editing' on these himself. Accordingly, he makes mistakes and/or does not catch and fix all processing and encoding errors. So those without the _1080 designations that I'm offering above have those errors. Only the source files he has uploaded do not. If you append a _1080 or _720 to the URL and manually download that file, you can salvage somewhere between 80-95% of the file by running a manual cleanup. I recommend the open source software UnTrunc from anthwlock's github. Use any of the non corrupted _1080 files as the reference for Untrunc and it will attempt to fix. You might miss the final 1 minute of the scene when it cleans it, you might miss the final 10 minutes. If you're ok with that tradeoff, go for it.
Otherwise your best bet would be downloading and re-encoding it down or hoping someone else will/does. I am only serving the files directly from the source here.