Access general settings trough wordpress files

You should be able to amend those items from the database.

In the table wp_options there are the option_names home and siteurl – editing these back to the http version should do the trick.

You might also want to check your wp-config.php file for the following:

define('WP_SITEURL', 'https://www.website.com/');                   
define('WP_HOME', 'https://www.website.com/');

And remove the ‘s’ here as well.

Turning on HTTPS and SSL for WordPress is very easy and what you have done will work – so long as you have already uploaded and installed a valid SSL certificate onto your server, without this there is no way for the server to actually be certified, and the https website url will not work.