Anaconda prompt closed suddenly after installing PyMc3 and warning in importing pymc3

Questions
17

import pymc3
WARNING (theano.tensor.blas): Using NumPy C-API based implementation for BLAS functions.
Traceback (most recent call last):
File “”, line 1, in
File “C:\Users\Beach.LAPTOP-UIO549S1\anaconda3\lib\site-packages\pymc3_init_.py”, line 13, in
from .stats import *
File “C:\Users\Beach.LAPTOP-UIO549S1\anaconda3\lib\site-packages\pymc3\stats_init_.py”, line 32, in
geweke = map_args(az.geweke)
AttributeError: module ‘arviz’ has no attribute ‘geweke’