Hi there.
So I am starting with Apex using the Oracle curriculum and they documentation and labs.
I was working on unit 3 called 'Creating a Database Application'.
Most of the stuff was good, but I had a typo:

Demo_Peojects instead of Demo_Projects.
I edited the generated page and changed it:

However, after saving and running still shows the typo.
I went page by page and did a search:

Nothing.
I see the wrong text on the page source, but I cannot seem to find where to make the proper change.
Thanks in advance.