Thanks @eris, I’ve missed that. - 
Here is solution for “future generations” with this problem from scratch:
wget https://downloads.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz
tar -xvzf ioncube_loaders_lin_x86-64.tar.gz
cd ioncube
php7.2 -i | grep extension_dir
cp ioncube_loader_lin_7.2.so /usr/lib/php/20170718
echo 'zend_extension=ioncube_loader_lin_7.2.so' > /etc/php/7.2/fpm/conf.d/00-ioncube-loader.ini
echo 'zend_extension=ioncube_loader_lin_7.2.so' > /etc/php/7.2/cli/conf.d/00-ioncube-loader.ini
service php7.2-fpm restart