I have looked all over the interwebs for the answer to this, and can't find one, so if this is redundant, I am sorry:
I installed ubuntu 16.04 on my Droplet, and put in the LAMP stack. I manage a wordpress...
You went the long way, I would say, but let's see if we can get you back :-)
I don't see why Apache certificates should have anything to do with SSH, but I'm guessing that's just a typo and you meant SS...