Mali began to lose its power when mansa musa died. Why do you think?

Mali began to lose its power when Mansa Musa died, because before he died he used his new ties to the Muslim people to make Mali a center of learning. Although when he died These learnings and powers began to fade. And raiders attacked from north, and fighting broke out within the kingdom. And some provinces broke away and became independent.
By Jina Sirriyeh