Fatal Error! Need Help.

What have I done 🙁 The past 2 days I have been trying to add a login/pass field into my menu bar. I’m not very familiar with the editor and am new to code.. I asked everywhere on stackexchange and here with no responses so I took matters into my own hands and tried a few things. This code here was ok, which I added into my functions.php

/* Custom Login Menu Field */
add_filter(‘wp_nav_menu_items’, ‘add_login_logout_link’, 10, 2);

function add_login_logout_link($items, $args) {
// start buffering
ob_start();
// this is the actual form function
wp_login_form($args); // $args optional see below ..
// get buffering
$loginoutform = ob_get_contents();
// clean buffering
ob_end_clean();
$items .= $loginoutform ; // concatenate buffering with items …
return $items;
}

It wasnt placed properly so I tried a new one. The one that just ruined everything. I removed the old one and went to try this:

$form = wp_login_form( array(
‘form_id’ => ‘adminloginform’,
‘echo’ => false,
‘label_username’ => __(”),
‘value_remember’ => true
) );

$wp_admin_bar->add_menu( array(
‘id’ => ‘login’,
‘title’ => $form,
) );

And boom.

Fatal error: Call to a member function add_menu() on a non-object in /home/content/p3pnexwpnas05_data03/81/2973181/html/wp-content/themes/jarvis_wp/functions.php on line 624

I tried removing it and updating but the error screen keeps coming up. Very frustrated and would greatly appreciate any help.