WP_DEBUG notice: wp_enqueue_script was called incorrectly

Hello,

I fully established website in form of a magazine. I have encountered recently very awkward situation. After hitting update button I got blank admin page showing 500 error.
http://i.imgur.com/fqqvuD6.png - This is how it appears when Braxton theme is activated. When any other takes place wp-admin can be accessed.

Website is 3 years old and during that time it has been regularly maintained. All plugins are up to date and platform itself. Braxton theme is used, the latest version and paid of course. What I have found is that admin panel appears when I use any other theme than Braxton. However, my users are used to Braxton interface and I would like to keep it.

Official Braxton support is not interested in providing any kind of help. Replies I get from him are to deactivate all plugins, install the latest version of the theme even though I have mentioned already that everything is done.
http://i.imgur.com/ABVeKzM.png - Plugins deactivated

Here is the error when I leave true for debugging mode.

Notice: wp_register_style was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in /var/www/vhosts/turske-serije.net/httpdocs/wp-includes/functions.php on line 3787 Notice: wp_register_style was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts, or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information. (This message was added in version 3.3.) in /var/www/vhosts/turske-serije.net/httpdocs/wp-includes/functions.php on line 3787 Notice: Undefined index: enableMultiple in /var/www/vhosts/turske-serije.net/httpdocs/wp-content/plugins/menufication111/menufication.php on line 102 Notice: The called constructor method for WP_Widget is deprecated since version 4.3.0! Use __construct() instead. in /var/www/vhosts/turske-serije.net/httpdocs/wp-includes/functions.php on line 3619 Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 262144 bytes) in /var/www/vhosts/turske-serije.net/httpdocs/wp-includes/meta.php on line 844

functions.php part

`/////////////////////////////////////
// Enqueue Javascript/CSS Files
/////////////////////////////////////

if ( ! function_exists( ‘enqueue_iecss’ ) ) {
function enqueue_iecss() {
// Register stylesheet
wp_register_style( ‘iecss’, get_template_directory_uri() . ‘/css/iecss.css’ );
// Apply IE conditionals
$GLOBALS[‘wp_styles’]->add_data( ‘iecss’, ‘conditional’, ‘lt IE 9’ );
// Enqueue stylesheet
wp_enqueue_style( ‘iecss’ );
} }
add_action( ‘wp_enqueue_scripts’, ‘enqueue_iecss’ );

if ( ! function_exists( ‘mvp_scripts_method’ ) ) {
function mvp_scripts_method() {
wp_register_script(‘iosslider’, get_template_directory_uri() . ‘/js/jquery.iosslider.js’, array(‘jquery’), ‘’, true);
wp_register_script(‘braxton’, get_template_directory_uri() . ‘/js/scripts.js’, array(‘jquery’), ‘’, true);
wp_register_script(‘lazyload’, get_template_directory_uri() . ‘/js/jquery.lazyload.js’, array(‘jquery’), ‘’, true);
wp_register_script(‘infinitescroll’, get_template_directory_uri() . ‘/js/jquery.infinitescroll.js’, array(‘jquery’), ‘’, true);
wp_register_script(‘respond’, get_template_directory_uri() . ‘/js/respond.min.js’, array(‘jquery’), ‘’, true);
wp_register_script(‘retina’, get_template_directory_uri() . ‘/js/retina.js’, array(‘jquery’), ‘’, true);
wp_register_script(‘stickymojo’, get_template_directory_uri() . ‘/js/stickyMojo.js’, array(‘jquery’), ‘’, true);

wp_enqueue_script('jquery');
wp_enqueue_script('iosslider');
wp_enqueue_script('braxton');
wp_enqueue_script('lazyload');
wp_enqueue_script('infinitescroll');
wp_enqueue_script('respond');
wp_enqueue_script('retina');

$mvp_sticky_sidebar = get_option('mvp_sticky_sidebar'); if ($mvp_sticky_sidebar == "true") { if (isset($mvp_sticky_sidebar)) {
wp_enqueue_script('stickymojo');
} }

wp_enqueue_style( 'mvp-style', get_stylesheet_uri() );
wp_enqueue_style( 'reset', get_template_directory_uri() . '/css/reset.css' );

$mvp_respond = get_option('mvp_respond'); if ($mvp_respond == "true") { if (isset($mvp_respond)) {
wp_enqueue_style( 'media-queries', get_template_directory_uri() . '/css/media-queries.css' );
} }

include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
if (is_plugin_active('menufication/menufication.php')) {
wp_enqueue_style( 'menufication', get_template_directory_uri() . '/css/menufication.css' );
}

wp_enqueue_style( 'googlefonts', 'http://fonts.googleapis.com/css?family=Quicksand:300,400|Vidaloka|Playfair+Display:400,700,900|Open+Sans+Condensed:300,700|Open+Sans:400,800|Oswald:300,400,700|Raleway:200,300,400,500,600,700,800&subset=latin,latin-ext,cyrillic,cyrillic-ext,greek-ext,greek,vietnamese' );

}
}
add_action(‘wp_enqueue_scripts’, ‘mvp_scripts_method’);`

Please note that I would not post here If I had not tried a variety of solutions.
Every help is welcome.

Best regards,
Igor