I'm trying to do a manual signing with dnssec-signzone with this 
command:
dnssec-signzone -t -N INCREMENT -o gentil.cat -f 
/etc/bind/gentil.cat.signed 
gentil.cat Kgentil.cat.+013+17694.key Kgentil.cat.+013+06817.key

This is my zone archive (it's named gentil.cat.hosts and it is in 
/etc/bind)
Screenshot of the archive:
https://i.sstatic.net/lQUPTvy9.png

And then the result of the command is this:
https://i.sstatic.net/f55JRMh6.png

Here is a screenshot with all de archives I have in /etc/bind
https://i.sstatic.net/ziubA75n.png
Note: "signat" is "signed" in catalan

Please can you help me?
Thanks