Hello,
I am trying to install the latest CPG on a new Rocky Linux 8 VPS (replacement for Centos

. I already have CPG running on Centos 7 but the install is dated (2014) and I want to restart fresh.
The issue I have is that the installer fails at the step where it connects to the database. Basically, I get a blank page after I click on "Next step". For information, I use a remote MariaDB server for database storage. Current CPG works perfectly that way.
What I've done:
Go to /var/www/html and:
git clone https://github.com/coppermine-gallery/cpg1.6.x.git
mv cpg1.6.x coppermine
chown -R apache:apache coppermine
Navigated to
https://vps.localdomain/coppermine/install.phpStep 1: License agreement: OK (no problems)
Step 2: Checking installation files: OK (no problems)
Displaying 1505 items of 1505 folders/files processed with 0 potential issues
Step 3: Checking directory permissions: OK (no problems)
Directory Status
./albums Writable
./albums/userpics Writable
./albums/edit Writable
./include Writable
Step 4: Image package selection: OK (no problems)
Your server supports the following image package(s)
GDlib Version 2.
ImageMagick Version 6.9.10(at: /usr/bin/)
Step 5: Testing image library: OK (but for some reasons I have to click "Next step" twice...)
Step 6: Database user authentication
Remark 1: Only MYSQLI or PDO:Mysql are available in the dropdown menu.
I selected "MYSQLI"
I entered the address of the DB server, username & password (for information, I can connect to the remote MariaDB server using the same credentials via the mysql CLI command)
I clicked "Test connection" => "Successful connection with database"
I clicked "Next step"
I get a BLANK page.
php -v
PHP 7.2.24 (cli) (built: Oct 22 2019 08:28:36) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
with Zend OPcache v7.2.24, Copyright (c) 1999-2018, by Zend Technologies
php -m
[PHP Modules]
bz2
calendar
Core
ctype
curl
date
dom
exif
fileinfo
filter
ftp
gd
gettext
hash
iconv
intl
json
libxml
mbstring
mysqli
mysqlnd
openssl
pcntl
pcre
PDO
pdo_mysql
pdo_sqlite
Phar
readline
Reflection
session
SimpleXML
sockets
SPL
sqlite3
standard
tokenizer
wddx
xml
xmlreader
xmlrpc
xmlwriter
xsl
Zend OPcache
zip
zlib
[Zend Modules]
Zend OPcache
hostnamectl
Static hostname: vps.localdomain
Icon name: computer-vm
Chassis: vm
Machine ID: XXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Boot ID: XXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Virtualization: kvm
Operating System: Rocky Linux 8.4 (Green Obsidian)
CPE OS Name: cpe:/o:rocky:rocky:8.4:GA
Kernel: Linux 4.18.0-305.25.1.el8_4.x86_64
Architecture: x86-64
Of course I tried with the cpg_install_stub.php script (v3.4) pretty much every possible way (selecting different CPG versions, etc) and I could NEVER make it work past the DB step (sometimes even having other issues)
Whats next?