Ads don’t show on tablet and regular browser, do show in private browser

Hi! I need help and I don’t know what to do. Everything I tried so far failed.

My account has been approved, and everything seems to be in order.

I have a WordPress site, which is all up to date. I have the “Advanced Ads” plugin installed. I connected it to my AdSense account and enabled “insert the AdSense header code used for verification and the Auto Ads feature.”

I have applied a 50px margin to ads. I see lots of blank spaces there, but no ads.
I tried with my Galaxy Tab A tablet, and the ads don’t show either.

However, I can see the ads on my LG G6+ phone, AND on Chrome when I’m in a Private Browser Window.
I tried logging out of the WordPress dashboard, and I was able to see one ad, but all the rest were blank.

I have no popup blocker installed. In fact, I disabled all my extensions, to no avail.
Can anyone help??

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