Haiti PM Joseph Jouthe resigns amid violence: Why is there political instability in the Caribbean country?

Amid the political instability, Haiti has seen a high turnover of Prime Ministers, with eight of them appointed to the position since 2015.

source https://www.jagranjosh.com/current-affairs/haiti-pm-joseph-jouthe-resigns-amid-violence-why-is-there-political-instability-in-the-caribbean-country-protests-in-haiti-1618479075-1