updates – can I still upgrade ubuntu16.04 – GUI and terminal upgrade fails

I am unable to upgrade 16.04LTS. GUI upgrade does nothing at all but Terminal commands are fine until this step:

$ sudo do-release-upgrade

“Checking for a new Ubuntu release
Please install all available updates for your release before upgrading”.

Have updated and tried this several times without success.
I know it is now past the EOL date but is there a way to still upgrade to the next LTS version?