download patches in closed network

good morning/ evening,
i read this article and i followed the instructions.
https://www.manageengine.com/products/desktop-central/help/configuring_desktop_central/patch_management_for_closed_network.html
in "update the patch database" section, when i tried to execute this command "patchsync.bat -c updatedb", the command prompt (CMD) says this:

dbName is :: pgsql
Dec 3, 2017 3:56:20 PM com.adventnet.sym.server.downloadmgr.DownloadManager downloadFile
INFO: Going to establish connecton for http://patchdb.manageengine.com/dc-crs/crs-meta-data.xml
Dec 3, 2017 3:56:23 PM com.adventnet.sym.server.downloadmgr.SSLUtil initSecurityProvider
INFO: Provider :: CryptixCrypto version 1.2
Dec 3, 2017 3:58:20 PM com.adventnet.sym.server.downloadmgr.DownloadManager downloadFile
WARNING: Error occurred while reading & writing : updatedb\dc-crs\crs-meta-data.xml : java.io.EOFException: Premature EOF encountered

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how to solve this problem ?