Hi @Tej-Singh-Rana @Inderpreet,
Please take a look for me.
I got validation error as
But from the instructions in the tasks that variable was to be database_host and not database_blog
:- Define environment, set MYSQL_DATABASE its value should be database_host, set MYSQL_ROOT_PASSWORD and MYSQL_PASSWORD value should be with some complex passwords for DB connections, and MYSQL_USER value should be any custom user ( except root ).
The install page comes as expected.