Answer:
They had no central leadership.
Step-by-step explanation:
The main issue with the Articles of Confederation was that they lacked a central leadership. The Congress and States were left to their own jobs, though this meant Congress couldn't handle any taxing, trading, law enforcement, and they didn't have a court to discuss things in. Not to mention, in order to change an Article, votes needed to be unanimous. There was a load of things wrong with the Articles of Confederation, but the biggest thing was the lack of a Judicial branch (the central leadership aforementioned).