[AMP@unknownA4BADB3F31D7 ~]$ ampinstmgr quickstart admin hidden
[Info] AMP Instance Manager v1.8.3.4 built 09/08/2019 13:01
[Info] Release spec: Release - built by CUBECODERS/BuildBot on CCL-DEV
[Warning] AMP Service port ranges have not been specified, using any available...
[Warning] Application Service port ranges have not been specified, using any available...
[Info] No cache exists for 1834
[Info] Downloading AMP from https://cubecoders.com/Downloads/AMP_Latest.zip...
[Info] Complete
[/home/AMP/.ampdata/instances/AMPCache-1834.zip]
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of /home/AMP/.ampdata/instances/AMPCache-1834.zip or
        /home/AMP/.ampdata/instances/AMPCache-1834.zip.zip, and cannot find /home/AMP/.ampdata/instances/AMPCache-1834.zip.ZIP, period.
[Error] Download or unpack failed. Please check your network connection and try again.
[Error] Unzip return code was 9
[Info] Instance creation failed. The core archive failed to download or unpack
[AMP@unknownA4BADB3F31D7 ~]$