This page has issues with unminified/uncompressed JavaScript and CSS files

Hi guys - I am using Generatepress 3.2.4 My website is assistantadvice.com

I am seeing a message about uncompressed/unminfied Javascript and CSS files from Semrush but don't know how to deal with this.

Warnings (3)
This page has issues with unminified JavaScript and CSS files 207 more issues with unminified JavaScript and CSS files

This page has issues with uncompressed JavaScript and CSS files 1,241 more issues with uncompressed JavaScript and CSS files

How do I go about compressing the script and files?
Thank you for looking at this.

Cheers.

This is what is already in the Simple CSS editor

p.box-link a:before {
content: '';
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}

@media (max-width: 599px) {
.wp-block-column {
margin-bottom: 25px;
}
}