I do not change anything about database. Error detail said :
"Error establishing a database connection This either means that the username and password information in your wp-config.php file is incorrect or we can’t contact the database server at localhost. This could mean your host’s database server is down.
Are you sure you have the correct username and password? Are you sure you have typed the correct hostname? Are you sure the database server is running? If you’re unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums."
i am sure have correct username, password and hostname, because i don’t change it
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