I accessed the file in question. The line you mention is already uncommented.
Following the spirit of your advice, I went to the httpd-vhosts.conf file and sure enough, the vhosts file had an improper configuration. I never thought to check this, as I assumed that AMPPS would configure the vhosts file correctly (and it always had before). I simply changed the name of the VirtualHost from 127.0.0.1:80 to mydomain.com:80 and now my site works as intended.
I consider this issue resolved now. Thank you for your input, as you led me right to the solution