Hey there @mingala!
It looks like /nas1
is a network-mounted NFS drive:
My guess is that there is a driver or compatibility error happening here - it looks like the filesystem (and its metadata) is temporarily in an inconsistent state. This would be a good one to send towards your cluster sysadmin, they might have some ideas. I don't think this is a QIIME 2 error at this point, I think this has to do with the filesystem (either the local mount, or maybe on the NFS server...).
Please keep us posted.