I had the too many redirects errors using the Let’s Encrypt SSL script option offered by Hestia. It did not affect all domains but did seem to shift from 1 domain to another domain. But never on multiple domains. ( Some had the full setting already configured) The previous topic ( on the forum ) was NEVER answered properly. The respondent never suggested any leads on trouble shooting. A lot of people are not experts in transport security behaviors and it would help if response to topics were at least mindful of the hair pulling that goes along with installing and configuration. I hope my specific response helps others that are using the default options offered in the control panel. Cloudflare caches and cuts down on server requests among other things and services that they offer. Compatibility with Cloudflare is a necessary component these days