Cannot Install this package nor installing the dependencies, please help

[raflymln]

I try all the possibilities by following the installation tutorial and search everywhere at google, but ends up on this error:

  Could not find package huasofoundries/phppgadmin6 with stability stable in a version installable usin
  g your PHP version, PHP extensions and Composer version.

Problem 1
    - Root composer.json requires PHP extension ext-pgsql * but it is missing from your system. Install or enable PHP's pgsql extension.
Problem 2
    - simpletest/simpletest is locked to version v1.2.0 and an update of this package was not requested.
    - simpletest/simpletest v1.2.0 requires php ^7.1 -> your php version (8.0.22) does not satisfy that requirement.

To enable extensions, verify that they are enabled in your .ini files:
    - /etc/php/8.0/cli/php.ini
    - /etc/php/8.0/cli/conf.d/10-mysqlnd.ini
    - /etc/php/8.0/cli/conf.d/10-opcache.ini
    - /etc/php/8.0/cli/conf.d/10-pdo.ini
    - /etc/php/8.0/cli/conf.d/15-xml.ini
    - /etc/php/8.0/cli/conf.d/20-bcmath.ini
    - /etc/php/8.0/cli/conf.d/20-calendar.ini
    - /etc/php/8.0/cli/conf.d/20-ctype.ini
    - /etc/php/8.0/cli/conf.d/20-curl.ini
    - /etc/php/8.0/cli/conf.d/20-dom.ini
    - /etc/php/8.0/cli/conf.d/20-exif.ini
    - /etc/php/8.0/cli/conf.d/20-ffi.ini
    - /etc/php/8.0/cli/conf.d/20-fileinfo.ini
    - /etc/php/8.0/cli/conf.d/20-ftp.ini
    - /etc/php/8.0/cli/conf.d/20-gd.ini
    - /etc/php/8.0/cli/conf.d/20-gettext.ini
    - /etc/php/8.0/cli/conf.d/20-iconv.ini
    - /etc/php/8.0/cli/conf.d/20-mbstring.ini
    - /etc/php/8.0/cli/conf.d/20-mysqli.ini
    - /etc/php/8.0/cli/conf.d/20-pdo_mysql.ini
    - /etc/php/8.0/cli/conf.d/20-pdo_sqlite.ini
    - /etc/php/8.0/cli/conf.d/20-phar.ini
    - /etc/php/8.0/cli/conf.d/20-posix.ini
    - /etc/php/8.0/cli/conf.d/20-readline.ini
    - /etc/php/8.0/cli/conf.d/20-shmop.ini
    - /etc/php/8.0/cli/conf.d/20-simplexml.ini
    - /etc/php/8.0/cli/conf.d/20-sockets.ini
    - /etc/php/8.0/cli/conf.d/20-sqlite3.ini
    - /etc/php/8.0/cli/conf.d/20-sysvmsg.ini
    - /etc/php/8.0/cli/conf.d/20-sysvsem.ini
    - /etc/php/8.0/cli/conf.d/20-sysvshm.ini
    - /etc/php/8.0/cli/conf.d/20-tokenizer.ini
    - /etc/php/8.0/cli/conf.d/20-xmlreader.ini
    - /etc/php/8.0/cli/conf.d/20-xmlwriter.ini
    - /etc/php/8.0/cli/conf.d/20-xsl.ini
    - /etc/php/8.0/cli/conf.d/20-zip.ini
You can also run `php --ini` in a terminal to see which files are used by PHP in CLI mode.
Alternatively, you can run Composer with `--ignore-platform-req=ext-pgsql` to temporarily ignore these required extensions.

Command "normalize" is not defined.
Script @composer normalize handling the post-autoload-dump event returned with error code 1

System info

• Composer version 2.4.1 2022-08-20 11:44:50
• PHP v8.0.22

Any solution for this? please help I'm kind of desperate for trying to install this