SOLVED_Double scroll bar in my website

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

Hi @davideakadudu

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

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

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