Major Podpress and Feed Problems

OK – I’m really confused because I have been having multiple problems with my feed.To make matters worse, I don’t even know what my ACTUAL feed is as far as Podpress is concerned.

I used to use this feed which was perfectly validated by feedvalidator:

https://maestromusicians.com/category/podcasts/

In fact, Itunes even recognized it (mostly), save for one episode which lacked an enclosure tag.

Now, a week later, I get this message from feedvalidator:

This feed does not validate.

Server returned HTTP Error 403: Forbidden [help]

HTTP error with content that looks like a feed [help]

line 1, column 1: Blank line before XML declaration [help]

I just can’t seem to figure out what has happened.

On top of that, feedvalidator changes my url to https://www.maestromusicians.com/feed when I type in the url I used above. Why is this so?

My mp3’s are all stored at https://www.maestromusicians.com/feed/podcast but when I type this into the browser, I get this:

XML Parsing Error: XML or text declaration not at start of entity
Location: https://www.maestromusicians.com/feed/podcast/
Line Number 2, Column 1:<?xml version=”1.0″ encoding=”UTF-8″?>
^

So confused..Any help would be greatly appreciated.

Incidentally, I did try to make some changes to my functions.php file yesterday but to my knowledge, after deleting the changes, everything should be 100% back to normal. If this could be the culprit, do you know how I can get the file back to how it should be (in default Magazine Child Theme css)?

Thanks,
Daniel