What three things that led to the downfall of Justinian and reign?

The downfall of Justinian's reign can be attributed to several factors, including the devastating effects of the Plague of Justinian, which significantly reduced the population and weakened the economy. Additionally, his ambitious military campaigns, while initially successful, drained the empire's resources and left it vulnerable to external threats. Lastly, his controversial religious policies and heavy taxation led to widespread discontent among the populace, culminating in revolts such as the Nika Riots.