Le message est "PHP Simple HTML DOM Parser" is missing. Get it from http://simplehtmldom.sourceforge.net and place the script "simple_html_dom.php" in the same folder to allow me to work."

Je pense qu'il vaudrait mieux mettre :
"PHP Simple HTML DOM Parser" is missing. Get it from http://simplehtmldom.sourceforge.net and place the folder "simple_html_dom" in the vendor folder to allow me to work. If vendor forlder is not available, please add it at the root."