please help me fix my RSS feed

My website is https://www.perfectlocks.com/hair-health-beauty-blog.php

Ive had the blog running for about 3 weeks now and somewhere along the way I must have screwed up the RSS feed because it simply doesnt work. I tried to validate it, it looks like there may be a
or white space on line 339 I need to remove but I can’t figure out the file.

https://www.perfectlocks.com/blog/?feed=rss2