Every time you ssh into your FreePBX Box its going to nag you about activation, unless you want to activate which hopefully you don't unless you're paying for 'commercial' modules on an open-source system.

This is generated by "fwconsole motd" which is executed through the /etc/profile.d/motd.sh file.

To remove this annoyance, and prevent things like scp from failing because they don't expect a bunch of crap when they ssh in, simply delete /etc/profile.d/motd.sh

No more nags, no more scp issues. All is good in the world.