Njoy21 running error

During running " Nuclear Data" example from documentation in Notebook, I get error which is given in attached .png file. Is there anything needed to be checked in

openmc.data.IncidentNeutron class?

Thanks in advance.

If you go to the URL that it is trying to download data from: https://t2.lanl.gov/nis/data/data/ENDFB-VII.1-neutron/H/2
You can see that it currently gives “System Unavailable, We are currently performing scheduled maintenance”.