Getting caching error on site

[netlover]

I’m getting the error below on a site:
The preview was unresponsive after loading. This is most often related to a plugin conflict or aggressive page cacheing.

Origin URL: https://aficreditsolutions.com

Preview URL: https://aficreditsolutions.com/the-hub/

[ruenel]

Hello There,

Thanks for writing in!

It seems that your server has a caching feature. Please check this link: https://www.inmotionhosting.com/support/website/cpanel/nginx-plugin-for-cpanel

By the way, we recommend that you increase your memory allocated to PHP. To increase it, please edit your wp-config.php file and insert these lines:

define( 'WP_MEMORY_LIMIT', '256M' );
define( 'WP_MAX_MEMORY_LIMIT', '512M' );

You can add it before the line
/*That's all, stop editing! Happy Blogging. */

We would loved to know if this has work for you. Thank you.