Error: 500 Internal Server Error

Sorry, the requested URL 'http://localhost/reader?url=https://www.rockymounttelegram.com/news/world/iran-revolutionary-guard-colonel-is-shot-dead-in-tehran/article_423e9f2e-683c-5be6-9884-e17b5da47ac0.html' caused an error:

Unhandled exception