I have just tried me in phpmyadmin lied only there is no error message or anything else.
What surprised me after a few minutes a message appears you are no longer logged in please log again.
Is this correct at the time it is only possible to install mariadb_10.1 and if so when is it possible to install mysql.
my system
PHP 5.6.30-5+0~20170223133422.27+stretch~1.gbp1ee0cb (cli)
Copyright (c) 1997-2016 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2016 Zend Technologies
with the ionCube PHP Loader (enabled) + Intrusion Protection from ioncube24.com (unconfigured) v6.0.9, Copyright (c) 2002-2016, by ionCube Ltd.
with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies
Server version: Apache/2.4.25 (Debian)
Server built: 2017-01-25T22:59:26
10.1.21-MariaDB-5+b1 Debian 9.0
i-MSCP Version: i-MSCP Git 1.4.x | Build: Nicht verfügbar | Codename: Zimmer