Weakness of the Articles of Confederation

After the American Revolutionary War, the newly independent states faced numerous challenges in governance. To manage these challenges, the first governing document of the United States, the Articles of Confederation, was established in 1781. However, this framework ultimately proved to be ineffective in managing the complexities of governing a nation, leading to significant issues that necessitated reforms.

Which of the following was a significant weakness of the Articles of Confederation that contributed to its eventual replacement with the U.S. Constitution?