You can try posting in the MiaB slack channel or posting an issue to GitHub, but it seems like something either with your provider or your server, given that there are over 20,000 servers running MiaB, we would hear about this more than two times on the forum were it a common configuration bug with MiaB.
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'php7.2-mysql' instead of 'php7.2-pdo-mysql'
The following NEW packages will be installed:
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 117 kB of archives.
After this operation, 449 kB of additional disk space will be used.
Get:1 http://mirror.transip.net/ubuntu/ubuntu bionic-updates/main amd64 php7.2-mysql amd64 7.2.24-0ubuntu0.18.04.7 [117 kB]
Fetched 117 kB in 0s (1,572 kB/s)
Selecting previously unselected package php7.2-mysql.
(Reading database ... 201504 files and directories currently installed.)
Preparing to unpack .../php7.2-mysql_7.2.24-0ubuntu0.18.04.7_amd64.deb ...
Unpacking php7.2-mysql (7.2.24-0ubuntu0.18.04.7) ...
Setting up php7.2-mysql (7.2.24-0ubuntu0.18.04.7) ...
Creating config file /etc/php/7.2/mods-available/mysqlnd.ini with new version
Creating config file /etc/php/7.2/mods-available/mysqli.ini with new version
Creating config file /etc/php/7.2/mods-available/pdo_mysql.ini with new version
Processing triggers for php7.2-fpm (7.2.24-0ubuntu0.18.04.7) ...
OK. So…that’s on me, perhaps I should have said are you running phpX-pdo-mysql where X is whatever version of PHP you are currently running.
You should be good to undo that (apt uninstall php7.2-mysql) and then make sure you are running the relevant package for whatever version of php you ARE running. (It looks like it should be 7.2 based on the NGINX message, but if you’ve upgraded php, who knows?)
I don’t know anything about TransIP, but you might want to look through cat /etc/apt/sources.list and cat /etc/apt/sources.list.d/* to make sure the server is configured to pull Ubuntu project proxies (or just ubuntu.com or launchpad.net for some PPAs). I’ve had the experience of an ISP default installed with their proxy server, which I found would sometimes have different package configurations than Ubuntu.