Installing Google Analytics into Wordpress theme LandX

Hi wpmudev community,

I just purchased the theme LandX, and I am having trouble integrating google analytics, as I'm unsure of where to paste the tracking code.

On this thread: https://premium.wpmudev.org/blog/how-to-add-google-analytics-to-wordpress-in-under-60-seconds/, Raylene says to paste the tracking code into appearance > editor > header.php, which I have done exactly in the picture attached.

However, when I check my google analytics account, I keep getting a "tracking not installed" status, as seen in the other picture attached.

Any thoughts on how I can fix this problem? Thanks in advance!

Sincerely,
Tushar