UN website refers to PM Nawaz with monarchial title 'His Highness'

PM is criticized by the opposition politicians for his lavish lifestyle.
(Dunya News/Web Desk) – United Nations (UN) General Assembly’s website page refers to the Prime Minister of Pakistan Mian Muhammad Nawaz Sharif with the monarchial title ‘His Highness’ on the list of panelists that are due to address the assembly’s 69th session from September 24-30 in New York.
Prime Minister is referred with the monarchial title despite the fact that Pakistan is a parliamentary democracy and Nawaz Sharif is an elected Prime Minister.
Was it a result of a typo, an innocent mistake or a deliberate taunt is yet to be investigated. Pakistan Foreign Office hasn’t said anything in this regard thus far.
Prime Minister Nawaz Sharif is often referred to as a monarch sarcastically by opposition politicians in Pakistan. Prime Minister has a reputation for his lavish lifestyle especially among the circles critical of him.