Python-Matplotlib-Animation: When i try to save my animation it appears error like : self._frames[0].save(IndexError: list index out of range )

Question

I am using Win10, Python 3.5, Matplotlib 3.0.3

  ani = FuncAnimation(fig, animate, interval=1000,repeat=False,fargs=[allData, axes])
  #plt.show()

  writergi