Error: 500 Internal Server Error

Sorry, the requested URL 'http://localhost/reader?url=https://www.rockymounttelegram.com/news/world/wwii-plane-fly-past-honors-captain-tom-moore-at-funeral/article_0fe1b56e-33ba-5b4d-9dfb-f0f3d13a7b72.html' caused an error:

Unhandled exception