database update process

Hello, my site http://www.buttinoni.it has been giving me this error for a few days:

“Elementor data update

The database update process is running in the background. Is it taking a while?”

And if I click to run it, it gives me an error:

A critical error has occurred on this site. Check the incoming emails in the site administrator’s mailbox for instructions. If you continue to have problems, try the support forums.

I also contacted my provider and this is the answer:

Thank you for your reply.

The exact issue that is showing up after the “Update DB data” in Elementor is clicked is:

Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 229855936 bytes) in /home/buttinon/public_html/wp-includes/class-wpdb.php on line 2357

We have noticed such an error before with other clients, and regardless of how much we increase the PHP memory, the error message still stays.

The way our clients resolved that issue was by contacting the support of Elementor, who then looked into the Elementor setup of the site and made configurations, so that the error does not show again.

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