Ecco altro problema...

ora quando cerco di uploadare una foto mi dice

codice:
Warning: dir(/var/www/vhosts/ilblog.it/httpdocs/wp-inst/wp-content/blogs.dir/6/files/): failed to open dir: No such file or directory in /var/www/vhosts/ilblog.it/httpdocs/wp-inst/wp-content/mu-plugins/misc.php on line 19

Fatal error: Call to a member function on a non-object in /var/www/vhosts/ilblog.it/httpdocs/wp-inst/wp-content/mu-plugins/misc.php on line 22
vi posto il file la riga 22 del file mics.php

Codice PHP:
    while($file = $dir->read()) { 
ora non capisco dov'è l'errore