Cannot load comments for specific post

So, in /r/mexico there is a post currently that cannot load its comments.

This one: https://www.reddit.com/r/mexico/comments/u64rfx/la_reforma_eléctrica_impulsada_por_morena_no/

I put some prints but only know that Headlines got a 400 Bad Request for now. I'm documenting it here.

api::RedditAPI::ApiGet ==> urlStream[https://oauth.reddit.com/r/mexico/comments/u64rfx/la_reforma_eléctrica_impulsada_por_morena_no/.json?sort=confidence&limit=20]

api::RedditAPI::ApiGet ==> response[<!doctype html><html><title>Bad Request -- reddit.com</title><style>body{text-align:center;position:absolute;top:50%;margin:0;margin-top:-275px;width:100%}h2,h3{color:#555;font:bold 200%/100px sans-serif;margin:0}h3,p{color:#777;font:normal 150% sans-serif}p{font-size: 100%;font-style:italic;margin-top:2em;}</style><img src=//www.redditstatic.com/trouble-afoot.jpg alt=""><h2>The request you sent is not valid.</h2><p>(error code: 400)]

** (headlines:2): WARNING **: 14:02:47.925: Json::CharReader error: * Line 1, Column 1
  Syntax error: value, object or array expected.

Edited Apr 18, 2022 by Eddy Castillo