I finally found the cause, the script interferes with another script 
but I don’t know why.
script type=“text/javascript” src=“https://mediarecovery.pl/wp-content/typewriter/js/jquery.min.js”>
I finally found the cause, the script interferes with another script but I don’t know why.
script type=“text/javascript” src=“https://mediarecovery.pl/wp-content/typewriter/js/jquery.min.js”>