Noted. Thanks for taking the time to point this out. I totally agree that to create a tool like this the content must be accurate. I tried to avoid taking content from Wikipedia as much as possible as I'm also wary of its authenticity, so I've limited Wikipedia content to fallacy summaries only—as opposed to the detailed description (the panel that appears when you select a fallacy), in which case I used IEP and The Fallacy Files[1] as the major sources. Will certainly check out SEP.
I still need to do more homework regarding your claim regarding "probabilistic" fallacies, but you are correct about "Naturalistic Fallacy" so I have removed it as an alias of "Appeal to Nature". Thanks again for taking the time to point it out.
[1] https://www.fallacyfiles.org/