Fatal error: Uncaught Error

Hello and thank you for your support
Hope this helps you finding out.

Here ir the page where the error was caught (https://www.sensia-solutions.com/wp-admin/post.php)

WordPress version 5.8
Current theme: Avada (version 7.4.1)
Current plugin: Email Before Download (version 6.6)
PHP version 7.4.21

Error Details
=============
An error of type E_ERROR was caused in line 39 of the file /homepages/24/d284108914/htdocs/clickandbuilds/SENSIA/wp-content/plugins/email-before-download/includes/class-email-before-download-form.php. Error message: Uncaught Error: Call to a member function getAttribute() on null in /homepages/24/d284108914/htdocs/clickandbuilds/SENSIA/wp-content/plugins/email-before-download/includes/class-email-before-download-form.php:39
Stack trace:
#0 /homepages/24/d284108914/htdocs/clickandbuilds/SENSIA/wp-content/plugins/email-before-download/includes/class-email-before-download-shortcode.php(68): Email_Before_Download_Form->html()
#1 /homepages/24/d284108914/htdocs/clickandbuilds/SENSIA/wp-includes/shortcodes.php(356): Email_Before_Download_Shortcode->init_shortcode(Array, ”, ’email-download’)
#2 [internal function]: do_shortcode_tag(Array)
#3 /homepages/24/d284108914/htdocs/clickandbuilds/SENSIA/wp-includes/shortcodes.php(228): preg_replace_callback(‘/\\[(\\[?)(email\\…’, ‘do_shortcode_ta…’, ‘\n`

DOWNLOAD MONITOR PLUG IN

<?php
/*
	Plugin Name: Download Monitor
	Plugin URI: https://www.download-monitor.com
	Description: A full solution for managing and selling downloadable files, monitoring downloads and outputting download links and file information on your WordPress powered site.
	Version: 4.4.4
	Author: WPChill
	Author URI: https://wpchill.com
	Requires at least: 5.4
	Tested up to: 5.7
	Text Domain: download-monitor

	License: GPL v3

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.

	Original project created by Mike Jolley.
*/

if ( ! defined( 'ABSPATH' ) ) {
	exit;
} // Exit if accessed directly

// Define DLM Version
define( 'DLM_VERSION', '4.4.4' );

// Define DLM FILE
define( 'DLM_PLUGIN_FILE', __FILE__ );

if ( version_compare( PHP_VERSION, '5.3.0' ) >= 0 ) {
	require_once plugin_dir_path( DLM_PLUGIN_FILE ) . 'includes/bootstrap.php';
}else {
	require_once plugin_dir_path( DLM_PLUGIN_FILE ) . 'includes/php-too-low.php';
}

CONTACT FORM CODE

[email-download download_id=”9099” contact_form_id=”1859”]