So Confusing Poem by * Sunprincess *

So I thought to spend some time enjoying poems on Poemhunter
reading, commenting, finding a poem to give me a laugh
maybe even find a fabulous poem to add to my collection
Except I was suddenly interrupted by a message
so mysterious popping up on my screen
Oh please help, what does it mean...

The date and time is January 19,2017 at 12: 15 pm
' There's a problem with this website's security certificate
This might mean that someone's trying to fool you
or steal any info you send to the server.
You should close this site immediately.'

And I wonder am I the only person who's received this message?
Is someone really trying to steal my poemhunter's ID?
Then I thought, maybe they simply want me to do other things,
Like not read poetry, go for a walk, or even see a movie
O' this is so confusing..