SOLVED_Double scroll bar in my website

I Need Help
1

Hi everybody, I’m doing a website for a client, you can see it on the temporary link http://classyday.xyz/specchiamoda/

as you can see the strange thing is the double scroll bar on the right.
someone told me to copy this script in the header to try fix it

but nothing changed,
please help me

2

Hi @davideakadudu

Sorry I put the wrong tags in before, this is the amended version.

<style>
.page-container {overflow-x: unset;}
</style>
3

@PeteSharp thank you very much!!!
it solved the problem
great!