encrypt (3063:key unable to encrypt)

I'm trying to encrypt a file using PGP Command line and I'm receiving this error

encrypt (3063:key unable to encrypt)

This is occuring only a newer version of PGP Command line

PGP Command Line 10.4 build 94
Copyright (C) 2016 Symantec Corporation. All rights reserved.
All rights reserved.
Use of this product is subject to license terms.
This Symantec product may contain open source and other third party materials
that are subject to a separate license. Please see the applicable Third Party
Notice at http://www.symantec.com/about/profile/policies/eulas/.

For older version this works

PGP Command Line 10.1 build 52
Copyright (C) 2010 PGP Corporation
All rights reserved.

Key information

 Alg  Type Size/Type Flags
----- ---- --------- -------
 DSS  pub   512      [VT---]

Can anyone help me?

Thanks.