HTTP request failed! HTTP/1.1 403 Forbidden

Hi,

i don’t know why, but unfortunately the plugin stopped working.

Attached is a URL, where this happens.

What can i do about this?

The Code of the shown file is:

<?php
	#$url = 'osteoporose/was-ist-osteoporose/';
	$url = 'https://www.osteoporose-deutschland.de/'.$include_me_url;
	$content = file_get_contents($url);
	
	$pattern = '=Start Content(.*)Finish Content=isU'; 
	$result = preg_match($pattern, $content, $subpattern); 
	$content = substr($subpattern[1],86,strlen($subpattern[1])-84-86);
	if (strpos($content,'twoclick_social') !== false) {
		$content = substr($content,0,strlen($content)-2087);	
	}
	#$content = str_replace('https://','http://',$content);
	$content = str_replace('<a ','<a target="_blank" ',$content);
	echo $content;

The page I need help with: [log in to see the link]