Problems updating Layer Slider – My Site doesn't work!

Hi, I was trying to update the layer Slider and like every time, I’m having Problems with that! But this time even worst… I deleted the version 6.5.1 and tried to install the available 6.5.5… but after all the process and theoretically a successfully update, the old version is still there… I can’t activate it or delete it (see attachment) and I can take out the Maintainance Mode because some parts of the site aren’t working!

If I click on edit I have this:

<?php

/*
Plugin Name: LayerSlider WP
Plugin URI: https://codecanyon.net/item/layerslider-responsive-wordpress-slider-plugin-/1362246
Description: LayerSlider is the most advanced responsive WordPress slider plugin with the famous Parallax Effect and over 200 2D & 3D transitions.
Version: 6.5.1
Author: Kreatura Media
Author URI: https://layerslider.kreaturamedia.com
Text Domain: LayerSlider
*/

// Prevent direct file access.
if( ! defined(‘ABSPATH’) ) {
header(‘HTTP/1.0 403 Forbidden’);
exit;
}

// Attempting to detect duplicate versions of LayerSlider to offer
// a more user-friendly error message explaining the situation.
if( defined(‘LS_PLUGIN_VERSION’) || isset($GLOBALS[‘lsPluginPath’]) ) {
die(‘ERROR: It looks like you already have one instance of LayerSlider installed. WordPress cannot activate and handle two instanced at the same time, you need to remove the old version first.’);
}

// Used to enable/disable the activation box in older versions.
// Nowadays, it displays a notification warning theme users about
// potential activation issues and purchase codes. A more convenient
// solution will replace this in future versions.
$GLOBALS[‘lsAutoUpdateBox’] = true;

// Basic configuration
define(‘LS_DB_TABLE’, ‘layerslider’);
define(‘LS_DB_VERSION’, ‘6.5.0’);
define(‘LS_PLUGIN_VERSION’, ‘6.5.1’);

// Path info
// v6.2.0: LS_ROOT_URL is now set in the after_setup_theme action
// hook to provide a way for theme authors to override its value
define(‘LS_ROOT_FILE’, __FILE__);
define(‘LS_ROOT_PATH’, dirname(__FILE__));

// Other constants
define(‘LS_PLUGIN_SLUG’, basename(dirname(__FILE__)));
define(‘LS_PLUGIN_BASE’, plugin_basename(__FILE__));
define(‘LS_MARKETPLACE_ID’, ‘1362246’);
define(‘LS_TEXTDOMAIN’, ‘LayerSlider’);
define(‘LS_REPO_BASE_URL’, ‘https://repository.kreaturamedia.com/v4/&#8217;);

if( ! defined(‘NL’) ) { define(‘NL’, “\r\n”); }
if( ! defined(‘TAB’) ) { define(‘TAB’, “\t”); }

// Shared
include LS_ROOT_PATH.’/wp/scripts.php’;
include LS_ROOT_PATH.’/wp/menus.php’;
include LS_ROOT_PATH.’/wp/hooks.php’;
include LS_ROOT_PATH.’/wp/widgets.php’;
include LS_ROOT_PATH.’/wp/shortcodes.php’;
include LS_ROOT_PATH.’/wp/compatibility.php’;
include LS_ROOT_PATH.’/includes/slider_utils.php’;
include LS_ROOT_PATH.’/classes/class.ls.posts.php’;
include LS_ROOT_PATH.’/classes/class.ls.sliders.php’;
include LS_ROOT_PATH.’/classes/class.ls.sources.php’;
include LS_ROOT_PATH.’/classes/class.ls.popups.php’;

// Back-end only
if( is_admin() ) {
include LS_ROOT_PATH.’/wp/activation.php’;
include LS_ROOT_PATH.’/wp/tinymce.php’;
include LS_ROOT_PATH.’/wp/notices.php’;
include LS_ROOT_PATH.’/wp/actions.php’;
include LS_ROOT_PATH.’/classes/class.ls.revisions.php’;

LS_Revisions::init();
}

if( ! class_exists(‘KM_PluginUpdatesV3′) ) {
require_once LS_ROOT_PATH.’/classes/class.km.autoupdate.plugins.v3.php’;
}

// Register [layerslider] shortcode
LS_Shortcode::registerShortcode();

// Add default skins.
// Reads all sub-directories (individual skins) from the given path.
LS_Sources::addSkins(LS_ROOT_PATH.’/static/layerslider/skins/’);

// Popup
LS_Popups::init();

// Setup auto updates. This class also has additional features for
// non-activated sites such as fetching update info.
$GLOBALS[‘LS_AutoUpdate’] = new KM_PluginUpdatesV3(array(
‘name’ => ‘LayerSlider WP’,
‘repoUrl’ => LS_REPO_BASE_URL,
‘root’ => LS_ROOT_FILE,
‘version’ => LS_PLUGIN_VERSION,
‘itemID’ => LS_MARKETPLACE_ID,
‘codeKey’ => ‘layerslider-purchase-code’,
‘authKey’ => ‘layerslider-authorized-site’,
‘channelKey’ => ‘layerslider-release-channel’
));

// Offering a way for authors to override LayerSlider resources by
// triggering filter and action hooks after the theme has loaded.
add_action(‘after_setup_theme’, ‘layerslider_after_setup_theme’);
function layerslider_after_setup_theme() {
$url = apply_filters(‘layerslider_root_url’, plugins_url(”, __FILE__));
define(‘LS_ROOT_URL’, $url);
layerslider_loaded();
}

// Load locales
add_action(‘plugins_loaded’, ‘layerslider_plugins_loaded’);
function layerslider_plugins_loaded() {
load_plugin_textdomain(‘LayerSlider’, false, LS_PLUGIN_SLUG . ‘/locales/’ );
}

Please heeeeeelp me!