Warnings in Qualys SSL Server Test - caused by long chain?

acme.sh
You can even install it side-by-side. No need to uninstall certbot.
You simple get it to work and then switch the web server to point to the cert files it obtained.
If that works well, good.
If you don't like anything about it, just switch the web server to point back to the certbot cert files.
And then uninstall it.

installed. got a cert. Installing it. ok, I admit it, I am spoiled by certbot.