Cannot Find Google Analytics in WP site

Hi and good day to all.

I’m the new Web guy for the website
the website was created on a Customized Theme. So it’s not any WP theme,.
There is already a google analytics tracking code installed on the site, since it is detected in the Google Chrome Tag Assistant, and there is already a global tag ID showing up.

My problem with this customized theme is:

i can’t seem to find where to check or I can’t seem to view the code where the analytics was added on the theme.

Because what really happened is, when I created a new website page using the default template theme, then the newly created page can be tracked in google without any issue, like if I visit the newly created page, there is a session hit that shows up in the real time visitor in google analytics account.

However, when i then created a new page again, but this time, I will not use the default template, i will just use like an elementor page editor to create the page, then for some reason, the newly created page is not detected on the Google Analytics, even if i visit this Page(created in Elementor) so that means, there is no session on this page created in Elementor.

But how come? I mean, they are both on the same website URL or even in the same wordpress page dashboard, it’s just that the pages are created differently,
– one was created using the default template (on the customized theme)
– the other one was created in Elementor

Now, even if i added a plugin (Insert Headers and Footers) to just install the Google Analytics Tracking code on the header, for some reason it still doesn’t seem to work, i mean there is already an existing Analytics code added somewhere on the theme that I can’t seem to find or modify.

Can you guys help me find these code?

I have full FTP access on the website so I can really view where it is.

The page I need help with: [log in to see the link]