Failed opening wp-cache-phase1.php

Hello guys!

I’m working on a page and i’ve been facing this issue:
Warning: include_once(): Failed opening ‘/www/prointec/htdocs/nuevositio/wordpress/wp-content/plugins/wp-super-cache/wp-cache-phase1.php’ for inclusion (include_path=’./:/usr/local/php7.2/lib/php’) in /www/prointec/htdocs/nuevositio/wordpress/wp-content/advanced-cache.php on line 22

It happens when i go to any section other than the Main Page, and then i want to go back and this error appears.
I can ‘fix’ it temporarly clearing the browser’s cache with Ctrl + F5, so it’s pretty clear that this plugin is making trouble.

I deactivated and still have the same issue.

Hope someone can lend me a hand, thanks!

The page I need help with: [log in to see the link]