Trouble with debsign, dput

[Elías Alejandro <ealmdz@gmail.com>]

Dear all,
Recently I wanted to sign my package with debsign and then upload to
debian mentors but I got an error, the steps was the following:

$ debsign gpick_0.2.5+git20161221-1_i386.changes

Successfully signed dsc and changes files
$ dput mentors gpick_0.2.5+git20161221-1_i386.changes
Checking signature on .changes
gpgme: /tmp/gpick_upload/gpick_0.2.5+git20161221-1_i386.changes: error
55: Invalid value
(7, 55, u'Invalid value')

I've tried with: debsign -pgpg2 gpick_0.2.5+git20161221-1_i386.changes
but I got the same "Invalid value".

Do you know about this error? Thanks!

Versions:
debsign: 2.16.13
dput: 0.11.0

Best regards,
Elías Alejandro