Hi all,
my hosting changed php version in 5.3, so I repair all problems with my joomla installation.

But if I go to JMS > "Manage sites" the page is blank and no error is shown, the same for "templates" and "tools". The other section work.

Someone know this problem? I can't downgrade the php version nor show php errors.

JMS is updated at the last version, and joomla as well.

I hope someone can help me!

Thx in advance, every suggest is accepted

If i comment this line in administrators/components/com_multisites/models/manage.php:

require_once( JPATH_MULTISITES_COMPONENT_ADMINISTRATOR .DS. 'libraries' .DS. 'joomla' .DS. 'client' .DS. 'jms2winftp.php');

it works

I'm looking for some errors in this class, if I have updates I will write here

Which version of JMS are you using ?
Normally JMS 1.2.27 or higher is compatible PHP 5.3.

Perhaps you have an "error_log" file that would give more information on the reason you have a blank page.