SITE down due to deactive plugin still workable :/ help

My site went down after I believe simple page sidebars plugin even though deactive was able to be used. I had it deactivated but on a page it allowed me to add another sidebar and upon doing so it crashed my site and nothing is accessible. Any help would be appreciated hosted on linux.

Tried deleting plugins on file manager and restoring something…. idk very frustrated any help appreciated.

<?php
/**
* Front to the WordPress application. This file doesn’t do anything, but loads
* wp-blog-header.php which does and tells WordPress to load the theme.
*
* @package WordPress
*/

/**
* Tells WordPress to load the WordPress theme and output it.
*
* @var bool
*/
define(‘WP_USE_THEMES’, true);

/** Loads the WordPress Environment and Template */
require(‘./wp-blog-header.php’);