Timeout?

I’ve used this plugin in the past and found it worked perfectly to create archives of my WP sites.

But I just tried it on a site and something’s gone wrong.

I click the button to generate the static version, the page refreshes and seems to try and load for a very long time, eventually giving the following error:

The connection to the server was reset while the page was loading.

Any idea what could cause this (and how to fix it)?

Thanks!

https://www.ads-software.com/plugins/static-html-output-plugin/