GoGetSSL certified, but Softaculous says "Cannot find trustworthy SSL Certificate"

Yep! I would recommend creating a new account on infinity free (Change the nameservers of the new domain to ns1.epizy.com and ns2.epizy.com first), than follow the guide below to connect Cloudflare. The guide also has instructions on how to do SSL. After you get that all set up, install cakephp and your all good to go!