"Cannot Modify Header" error when moving MediaWiki to a subfolder on localhost

Question

I installed, configured, and populated MediaWiki on localhost and have been maintaining my wiki locally for 4 years. Today I simply dragged the mediawiki folder into a subfolder I created for better organization and now the site is broken.

Errors

Here are the debugs at the top (they were the exact same messages before, just a different path now, as noted below).

Top of Page:

Bottom of Page:

NOTE: The errors at the top are about continue vs break statements, whereas the bottom errors are mostly "cannot modify headers"

What I've Tried Already

1. Changed $wgScriptPath from

$wgScriptPath = "/hepperlepedia2" to $wgScriptPath = "/sub/wiki/hepperlepedia2"

2. Tried following MediaWiki directions. This page says directions for moving a wiki into a subfolder are here: https://stackoverflow.com/questions/4763909/mediawiki-on-subdirectory-and-subdomain. I followed these steps:

• (Already modified $wgScriptPath as indicated above)
• Restarted WampServer, which restarted apache
• Navigated to http://localhost/sub/wiki/hepperlepedia2/

Note, the site worked fine -- nothing was changed moving the mediawiki folder ("hepperlepedia2") into a subfolder. That's when I started getting all these debug errors.

My Question

I know that the debug screen means the path to the home/main/index page of the wiki must be working. But, why am I getting all these errors on things I didn't even change? If changing $wgScriptPath in LocalSettings.php didn't prevent these errors, what will? I suspect there is a setting or variable value somewhere that needs to be set, but I don't know what it would be.