DoctrineExtensions | Doctrine2 behavioral extensions , Translatable , Sluggable | Web Framework library

I'm using symfony5 and wanted to deploy earlier today, which failed with the following error on vendor loading with composer install or composer update :

according to this issue 'Class Doctrine\Common\Cache\ArrayCache does not exist' when installing a symfony project which worked for some the error might come from my doctrine version but as i have not updated it in the past few days I do not understand how it could

Here is my composer.json in case:

Good day, I have created new entity:

I am helping someone install E-Directory. It's overall a buggy app.

composer.json

I try to install a specific spreachsheet lib with this command:

composer require phpoffice/phpspreadsheet:1.8.2 (because I have Php5 version)

I have this error :

Your requirements could not be resolved to an installable set of packages.

Problem 1

I have a date field in Y-m-d H:i:s format. Now user can search by using date only. I have query like this:

The Problem: I'm looking to implement the DateTime script found in the Doctrine 2.7 docs here. I'm having trouble figuring out where this script should naturally go in Symfony 5's file structure.

The Setup: Used Composer to create a Symfony 5 website skeleton using composer create-project symfony/website-skeleton.

The Context: I don't have any real code implemented yet as I'm still trying to learn how Symfony works with Doctrine. I'm trying to do everything right with Symfony, including figuring out where files should go. From what I understand, each php script found in src is either a Controller, an Entity, or a Repository. I don't see where to reasonably put the DateTime script without making another folder.

Any guidance is much appreciated! Thank you.

EDIT: The specific script I'm referring to is this class definition of UTCDateTimeType. I was under the impression that a skeleton was made to be THE file structure you worked with to allow for easy maintainability.

The last composer update completely broken my project based on Symfony5:

php.CRITICAL: Uncaught Error: Argument 1 passed to Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\DoctrineParamConverter::__construct() must be an instance of Doctrine\Common\Persistence\ManagerRegistry or null, instance of Doctrine\Bundle\DoctrineBundle\Registry given

I've already updated all the references of Doctrine\Bundle\DoctrineBundle\Registry to Doctrine\Common\Persistence\ManagerRegistry a long time ago, according to the Symfony documentation

Any help would be appreciated

List of installed packages:

format_number was introduced in 2.12, as far as I can tell I have 2.13, using {{ constant('Twig_Environment::VERSION') }} outputs The current version is 2.13.0

Here is my composer json, I just dont see a reason I should be getting an unknown filter in this symfony 4.4.* project.

I'm trying to install composer using "composer install" but i get this error. I've searched about it but there is no solution for me. I just understood that it's a version compatibility problem