Getting some weired issue in As-Ad model

[Akash]

I am new to python. Doing some data analysis and macro economic analysis. I found your repo and start doing some experiments. But when I run you As-Ad model code on google colab it had run successfully but when I run this on my system or any other places I am getting a weird issue.
ValueError: setting an array element with a sequence. The requested array has an inhomogeneous shape after 1 dimensions. The detected shape was (2,) + inhomogeneous part.
-> 215 plt.axhline(y = Pstar, xmax = LRAS/80, ls=':', color='k')