Issue in the Layout of the Site Page Design

Hi all,

We have a Site page in modern team site, in which i tried to add a javascript through the webpart script editor for displaying the time and date.

But the problem with the page is now the entire design went off and it shows only numbers and junk of codes looks crashed.

I tried to change but not possible, kindly any one advice how to remove the script and rebuild the site.

Regards,

Ajaykumar