5:25 PM PT -- Twitter's now copping to one of its staffers pulling the plug on President Trump.

Earlier today @realdonaldtrump’s account was inadvertently deactivated due to human error by a Twitter employee. The account was down for 11 minutes, and has since been restored. We are continuing to investigate and are taking steps to prevent this from happening again.

Just a shot in the dark here, but we're thinking POTUS will have plenty to say about this.

Donald Trump's Twitter page was mysteriously taken down ... only to reappear after a few minutes.

The @realDonaldTrump handle was shut down just before 4 PM PT ... sending the twitterverse into a frenzy. If you checked in to see what the Prez was spewing tweeting ... you got the automated message, "Sorry, that page doesn't exist!"

But before conspiracy theorists could formulate a nice, juicy plot -- the page was back up and running and seemed to have all of his timeline intact.

His last tweet before the crash was about his nominee for Federal Reserve Chairman.