Unable to locate package php7.3

[gsnick]

Hello,
Does someone know how to fix:
E: Unable to locate package php7.3
E: Couldn't find any package by glob 'php7.3'
E: Couldn't find any package by regex 'php7.3'?
The OS is Ubuntu 18.04.6 LTS

The repository is added using
add-apt-repository ppa:ondrej/php
apt update
apt install php7.3 and it writes that Unable to locate package php7.3.
That is a clean OS.

Thank you.

[stpnkcrk]

#1922

[gsnick]

Thanks.