I am running these commands to reinstall php5.6 and I getting this error:
add-apt-repository ppa:ondrej/php
W: GPG error: http://dl.google.com stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6494C6D6997C215E W: There is no public key available for the following key IDs: 1397BC53640DB551 W: Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/main/binary-i386/Packages 404 Not Found [IP: 172.217.8.142 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
Please advise