Ace555

i have the same problem

hi if this can help u
go to
wp-config.php

look for: For developers: WordPress debugging mode.

change

define(‘WP_DEBUG’, false);
to
define(‘WP_DEBUG’, true);

now go to your site and try to see what is the problem

Hi,

I Have the similar problem

After updating my WordPress to 3.6 I can access the multisite administration panel.

but not with my main domain just with other sits in the same network over on this site WordPress 3.6 is OK

I do not have access to the network

/wp-admin/network/

OR
/wp-admin/ of the main site
OR
/wp-admin/network/upgrade.php

This is what i get

The website encountered an error while retrieving https://exemple.com/wp-admin/network/upgrade.php. It may be down for maintenance or configured incorrectly.
Error code: 500

If someone can help fix it i’ll appreciate it

Thanks
A