The Articles of Confederation faces many issues.
A few of the issues were a shortcoming of funds and the lack of authority over internal trade (Schultz, 2013). The new nation was massively in debt due to the war. The massive debt made it hard to find creditors to raise funds. Next, there was no centralized authority to manage commerce between the states. A national policy on commerce was not provided by the Articles of Confederation. Trade between the states greatly suffered because of this.
In my opinion, the main reason the Articles of Confederation failed to live up to the needs of the new nation was financial troubles. Farmers were unable to pay their debts. Tariff wars began because each state changed tariffs on the other states when trading goods. Inflation was another big issue that caused many financial
troubles.
References
Schultz, K. M. (2013). HIST (3rd ed.). Cengage Learning.