As such Alexa has forgotten all of her skills. I finally found out that is because skills are different in each country, so even though alexa has a plex skill, it was loaded last week before Amazon introduce Canada as one of the countries it supports. When I do a search, I find the plex skill is not even available in Canada.
I can use a VPN connection to alexa.amazon.com and still see it. But I don't have a VPN enabled router, so Alexa will only use the Canada skills. Which means NONE of the 20 or so skills she had learned including plex.
The number one reason I purchased an echo is to control plex when I misplace the remote. Now that is not possible.
Please enable this skill for ALL countries, not just the US!