Verify that directories are correct and that you copy the files in "/wallets/neutron/". And check if zip file is corrupted.
Neutron version v2.0.1.0-unk (May 7 2018, 06:04:27)
Using OpenSSL version OpenSSL 1.0.2j-fips 26 Sep 2016
Startup time: 05/17/18 13:06:45
Default data directory /root/.neutron
Used data directory /wallets/neutron/
Neutron server starting