Hi folks notice error today
Reading package lists… Done
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://repo.percona.com jessie InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 9334A25F8507EFA5
W: Failed to fetch http://repo.percona.com/apt/dists/jessie/InRelease
W: Some index files failed to download. They have been ignored, or old ones used instead.
W: Duplicate sources.list entry http://repo.percona.com/apt/ jessie/main amd64 Packages (/var/lib/apt/lists/repo.percona.com_apt_dists_jessie_main_binary-amd64_Packages)