"Unable to run gpg - it may not be available."

I'm getting "Unable to run gpg - it may not be available." in /var/log/mayan/worker-stderr.log when uploading a document.

Followed guide from https://mayan.readthedocs.io/en/v2.1.4/topics/deploying.html

Everything was well, but got problem with apt install gnupg1, who is not in Debian Jessie standar repository I'm using. So, I've installed gnupg (without the "1") and gnupg2 from default and seems to work well alone.

(mayan-edms)root@eDMS:/# gpg --version

gpg (GnuPG) 1.4.18 Home: ~/.gnupg Supported algorithms: Pubkey: RSA, RSA-E, RSA-S, ELG-E, DSA Cipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH, CAMELLIA128, CAMELLIA192, CAMELLIA256 Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224 Compression: Uncompressed, ZIP, ZLIB, BZIP2

The document uploads ok to the server, in the right folder... If it counts.

Any Clues ?