CakePHP on AWS Bitnami LAMP server can't connect to database - php

Question

I am just getting into PHP and I'm trying to get a server started and go through CakePHP's CMS tutorial. However I cannot get a database connection. I get the error: CakePHP is NOT able to connect to the database.
Connection to database could not be established: SQLSTATE[HY000] [2054] The server requested authentication method unknown to the client
I have been trying to edit my app/config/app.php file. This is what I have:
'Datasources' => [
'default' => [
'className' => Connection::class,
'driver' => Mysql::class,
'persistent' => false,
'host' => 'localhost',
'port' => '3306',
'username' => 'root',
'password' => 'THE DEFAULT PASSWORD I USED TO GET INTO phpMyAdmin',
'database' => 'cake_cms',
'unix_socket' => '/opt/bitnami/mysql/tmp/mysql.sock',
//'encoding' => 'utf8mb4',
'timezone' => 'UTC',
'flags' => [],
'cacheMetadata' => true,
'log' => false,
'quoteIdentifiers' => false,
//'init' => ['SET GLOBAL innodb_stats_on_metadata = 0'],
'url' => env('DATABASE_URL', null),
],
'test' => [
'className' => Connection::class,
'driver' => Mysql::class,
'persistent' => false,
'host' => 'localhost',
'port' => '3306',
'username' => 'root',
'password' => 'THE DEFAULT PASSWORD I USED TO GET INTO phpMyAdmin',
'database' => 'cake_cms',
'unix_socket' => '/opt/bitnami/mysql/tmp/mysql.sock',
//'encoding' => 'utf8mb4',
'timezone' => 'UTC',
'cacheMetadata' => true,
'quoteIdentifiers' => false,
'log' => false,
//'init' => ['SET GLOBAL innodb_stats_on_metadata = 0'],
'url' => env('DATABASE_TEST_URL', null),
],
],
Thanks in advance. I'm super new, so maybe I need to provide more information.