PHP-Probs after migrating Ubuntu LAMP from 16.04 to 18.04.1

After Upgrading my Ubuntu LAMP-Server from 16.04 to 18.04 I get a couple of PHP-Modules are missing - errors. NC: 14.0.3, PHP Version 7.2.11-3, ubuntu18.04.1.

I just tried it again:
php -v

PHP (cli) (built: Oct 25 2018 06:44:08) ( NTS )

apt-get install php-pear php-fpm php-dev php-zip php-curl php-xmlrpc php-gd php-mysql php-mbstring php-xml libapache2-mod-php

But now I’m facing a new problem:

A “Updates between multiple major versions are unsupported” message is shown during an update/upgrade

I made the update from NC 13 to 14 on the old ubuntu 16 afterwards I upgraded Ubuntu to 18.04.