WP Super Cache Problems

When I log into my wordpress, there is a concerning message at the top of my dashboard. It says the following:

Warning! WP Super Cache caching broken! The script advanced-cache.php could not load wp-cache-phase1.php.

Please edit /home/X/public_html/X.com/wp-content/advanced-cache.php and make sure the path to /home/X/public_html/X.com/wp-content/plugins/wp-super-cache/wp-cache-phase1.php is correct.

I added the X where any personal information was.

I’m really not computer savvy at all. What does this mean? How do I fix it?

I’ve noticed that when I load my website without logging in, it’s showing to the public a version from several weeks ago before this error message occurred. I guess I can’t update my website while it’s broken.

Please help ??