Internet Explorer won't open ACME reliably; unsafe TLS security settings

I’m starting a major government project in a couple of weeks for RPA Dev, and I was trying to finish certificate. Doing the workflow inside IE seems most efficient considering that the alert boxes are responsive javascript to the UiPath scraper. What is incredibly frustrating is that the ACME test site will not open reliably at all. I have cleared my cache, reduced my security settings, turned protector off, everything else I’ve read on forums and this still doesn’t work.

It’s horribly frustrating to deal with a problem like this because I can’t reliably make it through a workflow in IE, especially when I have to have the brownser open the ACME page more than once. PLEASE HELP!