My website is not showing the ad units properly. At first, they were okay, but lately they have been showing up wrong.
This is how they show up: https://imgur.com/a/tdFUvuV
And this is how they should be showing up: https://imgur.com/m1hi8WG

I made sure that I'm pasting the codes in the right place. I didn't even change their place from the
beginning. Does someone know how I can fix this?

Thanks in advance.