New i see this in plesk log:
[Thu Dec 15 12:22:11.336503 2016] [fcgid:warn] [pid 505935] [client 84.x.x.x] mod_fcgid: stderr: PHP Warning: include(media-gallery-item.php): failed to open stream: No such file or directory in /var/www/vhosts/xxxxxxx.es/xxxxxxxx.es/wp-content/themes/socialize/rtmedia/media/media-gallery.php on line 44, referer: http://xxxxxxxx.es/top/
[Thu Dec 15 12:22:11.336508 2016] [fcgid:warn] [pid 505935] [client 84.x.x.x.] mod_fcgid: stderr: PHP Warning: include(): Failed opening 'media-gallery-item.php' for inclusion (include_path='.:') in /var/www/vhosts/xxxxxxxx.es/xxxxxxx.es/wp-content/themes/socialize/rtmedia/media/media-gallery.php on line 44, referer: http://xxxxxxxx.es/top/
I have rtmedia directory on my theme folder and line 44 of media-gallery.php is:
<?php include( 'media-gallery-item.php' ); ?>This file is in the same folder