White Screen of Death

Hello,

I have got problems with this plugin.
First I started to use this code to make a PopUp screen for pages which appears if a websitevisitor isn’t logged in:
add_action(‘template_redirect’,’check_if_logged_in’);
function check_if_logged_in()
{
if(!is_user_logged_in() && is_page( array(2651, 2987, 3021, 2152, 2241, 2164, 2245, 2181, 2067, 2198, 2225, 2233, 2202, 2347, 2079, 2090, 2283, 2330, 2314, 2974, 2322) ))
{

?>
<script src=”https://www.well.co.at/dev/wp-content/uploads/sweetalert-master/dist/sweetalert.min.js”></script&gt;
<script src=”https://cdnjs.cloudflare.com/ajax/libs/core-js/2.4.1/core.js”></script&gt;
<link rel=”stylesheet” type=”text/css” href=”https://www.well.co.at/dev/wp-content/uploads/sweetalert-master/dist/sweetalert.css”&gt;
<script src=”https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js&#8221;
type=”text/javascript”></script>
<script>
//setTimeout(function(){
//$(window).load( function() {
$( document ).ready(function() {
//window.onload = function () {
//document.addEventListener(‘DOMContentLoaded’, function() {
swal({
title: ”,
text: ‘Der Inhalt dieser Seite steht für unsere registrierten Besucher zur Verfügung.’,
imageUrl: ‘https://www.well.co.at/dev/wp-content/uploads/2017/05/well_logo1.png&#8217;,
imageWidth: 50,
imageHeight: 50,
allowOutsideClick: false,
animation: false,
confirmButtonColor: “#f18500”,
confirmButtonText: “Zur kostenlosen Registrierung”,
closeOnConfirm: false
}, function (isConfirm) {
location.href = “https://well.co.at/mein-konto&#8221;
});
});
</script>
<?php
exit;
}
}

It worked great and I thought I could use this plugin for more functions, so I made another function for integrating custom fields to my woo commerce login:

function wooc_extra_register_fields() {
?>
<p class=”form-row form-row-wide”>
<label for=”reg_billing_titel”><?php _e( ‘Titel’, ‘woocommerce’ ); ?></label>
<input type=”text” class=”input-text” name=”billing_titel” id=”reg_billing_titel” value=”<?php esc_attr_e( $_POST[‘billing_titel’] ); ?>” />
</p>
<p class=”form-row form-row-first”>
<label for=”reg_billing_first_name”><?php _e( ‘Vorname’, ‘woocommerce’ ); ?><span class=”required”>*</span></label>
<input type=”text” class=”input-text” name=”billing_first_name” id=”reg_billing_first_name” value=”<?php if ( ! empty( $_POST[‘billing_first_name’] ) ) esc_attr_e( $_POST[‘billing_first_name’] ); ?>” />
</p>
<p class=”form-row form-row-last”>
<label for=”reg_billing_last_name”><?php _e( ‘Nachname’, ‘woocommerce’ ); ?><span class=”required”>*</span></label>
<input type=”text” class=”input-text” name=”billing_last_name” id=”reg_billing_last_name” value=”<?php if ( ! empty( $_POST[‘billing_last_name’] ) ) esc_attr_e( $_POST[‘billing_last_name’] ); ?>” />
</p>
<p class=”form-row form-row-wide”>
<label for=”reg_billing_firma”><?php _e( ‘Firma’, ‘woocommerce’ ); ?></label>
<input type=”text” class=”input-text” name=”billing_firma” id=”reg_billing_firma” value=”<?php esc_attr_e( $_POST[‘billing_firma’] ); ?>” />
</p>
<div class=”clear”></div>
<?php
}
add_action( ‘woocommerce_register_form_start’, ‘wooc_extra_register_fields’ );

This also worked great, but I had to make another function to integrate the input data of these fields into my database so I made this function:

function wooc_save_extra_register_fields( $customer_id ) {
if ( isset( $_POST[‘billing_titel’] ) ) {
// Phone input filed which is used in WooCommerce
update_user_meta( $customer_id, ‘billing_titel’, sanitize_text_field( $_POST[‘billing_titel’] ) );
}
if ( isset( $_POST[‘billing_first_name’] ) ) {
//First name field which is by default
update_user_meta( $customer_id, ‘first_name’, sanitize_text_field( $_POST[‘billing_first_name’] ) );
// First name field which is used in WooCommerce
update_user_meta( $customer_id, ‘billing_first_name’, sanitize_text_field( $_POST[‘billing_first_name’] ) );
}
if ( isset( $_POST[‘billing_last_name’] ) ) {
// Last name field which is by default
update_user_meta( $customer_id, ‘last_name’, sanitize_text_field( $_POST[‘billing_last_name’] ) );
// Last name field which is used in WooCommerce
update_user_meta( $customer_id, ‘billing_last_name’, sanitize_text_field( $_POST[‘billing_last_name’] ) );
}
if ( isset( $_POST[‘billing_firma’] ) ) {
// Phone input filed which is used in WooCommerce
update_user_meta( $customer_id, ‘billing_firma’, sanitize_text_field( $_POST[‘billing_firma’] ) );
}

}
add_action( ‘woocommerce_created_customer’, ‘wooc_save_extra_register_fields’ );

After that my page turned white. I thought I could make it working again if I just delete these two new functions. That didn’t work. After that I tried to delete all functions in the code area of the plugin. Then I tried to delete the plugin. I also had a backup of my functions.php so I gave my actual functions.php another name (just in case if I would need it again) and used the backup version. Didn’t work either. So I reinstalled the plugin and tried to fix it with deleting my functions in the database “Database —> Table “wp_options” —> Option “anarcho_cfunctions_settings” —> “option_value”.” . I also tried to find MCFunctions_exec(); in my-custom-functions.php so i could comment it, but I didn’t find it.

Please help me! I have no clue what I could try to fix this