GPG Verify File check failed

Hello, recently I discovered that I cannot upgrade or install any new module in FreePBX 12.0.76.2 due to GPG verification check. I followed recommendations in similar posts, refreshing keys… etc.
Current situation is this;
running _gpg --verify (path to…)/admin/modules/cache/queues-12.0.21.tgz.gpg
I get this:
gpg: Signature made Tue 01 Mar 2016 10:07:20 PM CET using RSA key ID 69D2EAD9
gpg: Good signature from "FreePBX Mirror 1 (Module Signing - 2014/2015) <security’at’freepbx.org>"
but running amportal a ma download queues gives me:
Downloading 318769 of 318769 (100%)
The following error(s) occured:
_ - File Integrity failed for …/admin/modules/cache/queues-12.0.21.tgz.gpg - aborting (GPG Verify File check failed)
The same thing happens with upgrading framework or any other module…
I would very much like to avoid reinstalling FreePBX if possible…
Thanks!