Open Emr giving 500 error. composer after self update

Getting error :-

Uncaught Error: Class 'OpenEMR\\Common\\Logging\\Logger' not found in /var/www/html/t/services/VersionService.php:47

Using EBS

Config File :-


using .ebextensions/project.config

commands:
01-install-phpldap:
command: sudo yum -y install php72-ldap
02-update-composer:
command: export COMPOSER_HOME=/root && /usr/bin/composer.phar self-update

option_settings:
aws:elasticbeanstalk:application:environment:
COMPOSER_HOME: /root

OS Details :-

NAME=“Amazon Linux AMI”
VERSION=“2018.03”
ID=“amzn”
ID_LIKE=“rhel fedora”
VERSION_ID=“2018.03”
PRETTY_NAME=“Amazon Linux AMI 2018.03”
ANSI_COLOR=“0;33”
CPE_NAME=“cpe:/o:amazon:linux:2018.03:ga”
HOME_URL=“[AWS | Amazon Linux AMI](http://aws.amazon.com/amazon-linux-ami/)”

I am getting the same error when trying to use the demo sites.