[wp-FullPage] jQuery/CSS not loading

http://rebelartistry.home.pl/globald_pl/
I’ve tried to migrate wordpress page manually to different hosting with copying database and files from FTP. I have no other possibility in this case.
And something goes wrong – the dynamic links to css files from plugin wp-FullPage have something added, when I’m checking homepage source file through my web browser I see (for example):
<script type=’text/javascript’ src=’http://rebelartistry.home.pl/globald_pl/wp-content/plugins/wp-fullpage/inc/__DIR__/assets//js/jquery.slimscroll.min.js?ver=1.0′></script&gt;
and there shouldn’t be “__DIR__” but “fullpage”.
Do you know in which file and what we should edit to call to proper css file?