I did an upgrade from 1.1.8 to 1.2.0 using Magento Connect a couple of days ago and have tried to get it to work since then but not succeeded. I use the modern theme.
The front page works as does all sub pages that are either static or are not connected to the catalog (the log-in page, advanced search, contact us etc...)
As soon as you click on a link to the catalog (my categories) or make a search for something in the catalog I get the following error:
The server encountered an internal error and was unable to complete your request.
Premature end of script headers: index.php
If you think this is a server error, please contact the webmaster.
I also have a problem with the admin part, I get the log in page but after logging in I just get a blank page. I look at the url and it says:
If I change that into:
http://www.mydomain.com/index.php/admin/admin/dashboard/ I get a 404-error BUT I see all the menus and I can access all other admin pages but I can not make any changes (or rather I make the changes but when I click save it goes back to the way it was)
So it seems the dashboard url or the dashboard page itself that is wrong somewhere?
And there is something I need to correct with rights since something doesn’t seem to be writable?
I suppose that since I haven’t gotten that far on the site I should upgrade to 18.104.22.168 as soon as possible but I feel a bit put off using Magento Connect, can I do it manually and might this solve some of my problems?