Deploying Laravel project on render web hosting service provider shows 500 error after adding Docker

The description of my laravel project:

"require": {
        "php": "^8.1",
        "guzzlehttp/guzzle": "^7.2",
        "itsgoingd/clockwork": "^5.1",
        "laravel/framework": "^10.10",
        "laravel/sanctum": "^3.3",
        "laravel/tinker": "^2.8"
    },
    "require-dev": {
        "fakerphp/faker": "^1.9.1",
        "laravel/pint": "^1.0",
        "laravel/sail": "^1.18",
        "mockery/mockery": "^1.4.4",
        "nunomaduro/collision": "^7.0",
        "phpunit/phpunit": "^10.1",
        "spatie/laravel-ignition": "^2.0"
    }

I have created files like

root/Dockerfile:

FROM richarvey/nginx-php-fpm:latest

COPY . .

# Image config
ENV SKIP_COMPOSER 1
ENV WEBROOT /var/www/html/public
ENV PHP_ERRORS_STDERR 1
ENV RUN_SCRIPTS 1
ENV REAL_IP_HEADER 1

# Laravel config
ENV APP_ENV production    //I dont know if I should add or remove this config because        
ENV APP_DEBUG false       //the project is still in the development phase and I don't 
ENV LOG_CHANNEL stderr    //know if I should keep APP_DEBUG to true

# Allow composer to run as root
ENV COMPOSER_ALLOW_SUPERUSER 1

CMD ["/start.sh"]

root/conf/ngnix/ngnix-site.conf:

server {
  # Render provisions and terminates SSL
  listen 80;

  # Make site accessible from http://localhost/
  server_name _;

  root /var/www/html/public;
  index index.html index.htm index.php;

  # Disable sendfile as per https://docs.vagrantup.com/v2/synced-folders/virtualbox.html
  sendfile off;

  # Add stdout logging
  error_log /dev/stdout info;
  access_log /dev/stdout;

  # block access to sensitive information about git
  location /.git {
    deny all;
    return 403;
  }

  add_header X-Frame-Options "SAMEORIGIN";
  add_header X-XSS-Protection "1; mode=block";
  add_header X-Content-Type-Options "nosniff";

  charset utf-8;

  location / {
      try_files $uri $uri/ /index.php?$query_string;
  }

  location = /favicon.ico { access_log off; log_not_found off; }
  location = /robots.txt  { access_log off; log_not_found off; }

  error_page 404 /index.php;

  location ~* .(jpg|jpeg|gif|png|css|js|ico|webp|tiff|ttf|svg)$ {
    expires 5d;
  }

  location ~ .php$ {
    fastcgi_split_path_info ^(.+.php)(/.+)$;
    fastcgi_pass unix:/var/run/php-fpm.sock;
    fastcgi_index index.php;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_param SCRIPT_NAME $fastcgi_script_name;
    include fastcgi_params;
  }

  # deny access to . files
  location ~ /. {
    log_not_found off;
    deny all;
  }

  location ~ /.(?!well-known).* {
    deny all;
  }
}

root/scripts/00-laravel-deploy.sh:

#!/usr/bin/env bash
echo "Running composer"
composer global require hirak/prestissimo
composer install --no-dev --working-dir=/var/www/html

echo "generating application key..."
php artisan key:generate --show

echo "Caching config..."
php artisan config:cache

echo "Caching routes..."
php artisan route:cache

echo "Running migrations..."
php artisan migrate --force   //I do also have some seeders file too but I dont want to 
                              //add in it

root/.dockerignore:

/node_modules
/public/hot
/public/storage
/storage/*.key
/vendor
.env
.phpunit.result.cache
Homestead.json
Homestead.yaml
npm-debug.log
yarn-error.log

For the database, I have created a POSTGRESQL in Render and I added the credentials in their environment variable file.

And with that, I have pushed in my git repo. These are the images that show how I have set up the project.

:https://imgur.com/a/EJiEmMy

Now from Render, it is telling me that the build is successful, yet I am seeing 500 error.

Which I still cannot figure out why.

Also, the application log details are shared in-> https://pastebin.com/ujdfBRxQ

Initially,I removed the conf part from Dockerfile, but the problem still remains the same.