Unable to insert image in File Manager HTML editor: Call to undefined function get_magic_quotes_gpc()

Symptoms

• Unable to insert an image from Domains > example.com > File Manager > any-file.html > menu button on the right > Edit in HTML Editor with the error:

  Server Error
  500 Error
  Call to undefined function get_magic_quotes_gpc()

Cause

This is caused by Plesk bug PPPM-13901 and will be fixed in future updates.

Resolution

Until the bug is fixed as a workaround:

1. Log in to Plesk server via SSH

2. Edit the file /usr/local/psa/admin/htdocs/spaw/class/util.class.php:

   Find and replace the code block:

   public static function stripSlashes($var)
   {
   if (get_magic_quotes_gpc()) {
   return stripslashes($var);
   }
   return $var;
   }

   With this code instead:

   public static function stripSlashes($var)
   {
   return stripslashes($var);
   return $var;
   }