The magic_quotes_gpc PHP INI directive must be set to 'OFF' in order for OWA domstreams to operate correctly.
How do you make this change in Plesk server 9.5.4?
Server Fault is a question and answer site for system and network administrators. It only takes a minute to sign up.Sign up to join this community
There would be several options:
php_admin_flag magic_quotes_gpc offin docroot of your site
.../conf/vhost.confin a folder where your domain is located. You will need assistance of server admin, if you don't have admin privileges.
Alternatively you can upgrade to Plesk 10.4 or Plesk 11.0 and manage PHP settings from UI. It will also ensure your securiyt as older versions of Plesk were a subject of vulnerability recently.