My main site has problems.

Bagio

The configuration is no problem. The version is also up to date.
I can't upload pictures, only the original text

[root@VM_58_70_centos ~]# composer require reflar/uncache
Warning: This development build of composer is over 60 days old. It is recommended to update it by running "/bin/composer self-update" to get the latest version.
Do not run Composer as root/super user! See https://getcomposer.org/root for details
                                                                                                                                              
  [In
validArgumentException]                                                                                                                      
  Cou
ld not find package reflar/uncache at any version for your minimum-stability (stable). Check the package spelling or your minimum-stability  
     
                                                                                                                                             

requ
ire [--dev] [--prefer-source] [--prefer-dist] [--no-progress] [--no-suggest] [--no-update] [--no-scripts] [--update-no-dev] [--update-with-dependencies] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--] [<packages>]...

[root@VM_58_70_centos ~]# 

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2
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[root@VM_58_70_centos ~]# composer require reflar/gamification
Warning: This development build of composer is over 60 days old. It is recommended to update it by running "/bin/composer self-update" to get the latest version.
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Using version ^3.0 for reflar/gamification
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - reflar/gamification 3.0.9 requires flarum/core ^0.1.0-beta.7 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.
    - reflar/gamification 3.0.8 requires flarum/core ^0.1.0-beta.7 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.
    - reflar/gamification 3.0.7 requires flarum/core ^0.1.0-beta.7 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.
    - reflar/gamification 3.0.6 requires flarum/core ^0.1.0-beta.7 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.
    - reflar/gamification 3.0.5 requires flarum/core ^0.1.0-beta.7 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.
    - reflar/gamification 3.0.4 requires flarum/core ^0.1.0-beta.7 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.
    - reflar/gamification 3.0.3 requires flarum/core ^0.1.0-beta.7 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.
    - reflar/gamification 3.0.2 requires flarum/core ^0.1.0-beta.7 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.
    - reflar/gamification 3.0.1 requires flarum/core ^0.1.0-beta.7 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.
    - reflar/gamification 3.0.0 requires flarum/core ^0.1.0-beta.7 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.
    - Installation request for reflar/gamification ^3.0 -> satisfiable by reflar/gamification[3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9].


Installation failed, reverting ./composer.json to its original content.
[root@VM_58_70_centos ~]# composer remove flarum / flarum-ext-likes
Warning: This development build of composer is over 60 days old. It is recommended to update it by running "/bin/composer self-update" to get the latest version.
Do not run Composer as root/super user! See https://getcomposer.org/root for details
flarum is not required in your composer.json and has not been removed
/ is not required in your composer.json and has not been removed
flarum-ext-likes is not required in your composer.json and has not been removed
Package "flarum" listed for update is not installed. Ignoring.
Package "/" listed for update is not installed. Ignoring.
Package "flarum-ext-likes" listed for update is not installed. Ignoring.
Loading composer repositories with package information
Updating dependencies (including require-dev)
Nothing to install or update
Generating autoload files
[root@VM_58_70_centos ~]# composer require jjandxa / flarum-ext-chinese-search
Warning: This development build of composer is over 60 days old. It is recommended to update it by running "/bin/composer self-update" to get the latest version.
Do not run Composer as root/super user! See https://getcomposer.org/root for details

                                                                                                                                           
  [In
validArgumentException]                                                                                                               
  Cou
ld not find package jjandxa at any version for your minimum-stability (stable). Check the package spelling or your minimum-stability  
     
                                                                                                                                      

requ
ire [--dev] [--prefer-source] [--prefer-dist] [--no-progress] [--no-suggest] [--no-update] [--no-scripts] [--update-no-dev] [--update-with-dependencies] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--] [<packages>]...

[root@VM_58_70_centos ~]# composer require terabin/flarum-ext-sitemap
Warning: This development build of composer is over 60 days old. It is recommended to update it by running "/bin/composer self-update" to get the latest version.
Do not run Composer as root/super user! See https://getcomposer.org/root for details

                                                                                                                                                              
  [In
validArgumentException]                                                                                                                                  
  Cou
ld not find package terabin/flarum-ext-sitemap at any version for your minimum-stability (stable). Check the package spelling or your minimum-stability  
     
                                                                                                                                                         

requ
ire [--dev] [--prefer-source] [--prefer-dist] [--no-progress] [--no-suggest] [--no-update] [--no-scripts] [--update-no-dev] [--update-with-dependencies] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--] [<packages>]...

[root@VM_58_70_centos ~]# composer require flagrow/user-directory
Warning: This development build of composer is over 60 days old. It is recommended to update it by running "/bin/composer self-update" to get the latest version.
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Using version ^0.1.0 for flagrow/user-directory
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Installation request for flagrow/user-directory ^0.1.0 -> satisfiable by flagrow/user-directory[0.1.0].
    - flagrow/user-directory 0.1.0 requires flarum/core ^0.1.0-beta.6 -> satisfiable by flarum/core[0.1.x-dev, v0.1.0-beta.6, v0.1.0-beta.7, v0.1.0-beta.7.1] but these conflict with your requirements or minimum-stability.


Installation failed, reverting ./composer.json to its original content.
[root@VM_58_70_centos ~]# php flarum cache:clear
Could not open input file: flarum
[root@VM_58_70_centos ~]# composer require reflar/uncache
Warning: This development build of composer is over 60 days old. It is recommended to update it by running "/bin/composer self-update" to get the latest version.
Do not run Composer as root/super user! See https://getcomposer.org/root for details

                                                                                                                                                  
  [In
validArgumentException]                                                                                                                      
  Cou
ld not find package reflar/uncache at any version for your minimum-stability (stable). Check the package spelling or your minimum-stability  
     
                                                                                                                                             

requ
ire [--dev] [--prefer-source] [--prefer-dist] [--no-progress] [--no-suggest] [--no-update] [--no-scripts] [--update-no-dev] [--update-with-dependencies] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [--sort-packages] [-o|--optimize-autoloader] [-a|--classmap-authoritative] [--apcu-autoloader] [--] [<packages>]...

[root@VM_58_70_centos ~]# curl -sS https://getcomposer.org/installer | php
All settings correct for using Composer
Downloading...

Composer (version 1.7.0) successfully installed to: /root/composer.phar
Use it: php composer.phar

[root@VM_58_70_centos ~]# php composer.phar require guzzlehttp/guzzle
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Using version ^6.3 for guzzlehttp/guzzle
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 4 installs, 0 updates, 0 removals
  - Installing guzzlehttp/promises (v1.3.1): Loading from cache
    The Process class relies on proc_open, which is not available on your PHP installation.
    The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
    Unzip with unzip command failed, falling back to ZipArchive class
  - Installing psr/http-message (1.0.1): Loading from cache
    The Process class relies on proc_open, which is not available on your PHP installation.
    The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
    Unzip with unzip command failed, falling back to ZipArchive class
  - Installing guzzlehttp/psr7 (1.4.2): Loading from cache
    The Process class relies on proc_open, which is not available on your PHP installation.
    The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
    Unzip with unzip command failed, falling back to ZipArchive class
  - Installing guzzlehttp/guzzle (6.3.3): Loading from cache
    The Process class relies on proc_open, which is not available on your PHP installation.
    The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
    Unzip with unzip command failed, falling back to ZipArchive class
guzzlehttp/guzzle suggests installing psr/log (Required for using the Log middleware)
Writing lock file
Generating autoload files
[root@VM_58_70_centos ~]# require 'vendor/autoload.php';
-bash: require: command not found
[root@VM_58_70_centos ~]# require 'vendor/autoload.php';
-bash: require: command not found
[root@VM_58_70_centos ~]# require 'vendor/autoload.php
jordanjay29

Bagio Make sure you run your composer commands in the Flarum root folder.
Bagio

jordanjay29 Previously, you can use composer to install extensions. I don't know why today is not possible.
jordanjay29

Bagio I doubt your Flarum installation is located at your root user's home folder, which is where your console log says you are. Navigate to the folder where you installed Flarum and run the composer command again.