/* Ohhh, this is getting worse...
What version did you upgrade from?
Do you get the same error message as jamilj?
If you go to Home > User > Journal Manager > Import/Export Data > CrossRef XML Export Plugin > Select an Issue to export, is the page displayed fully/correctly but with no issue listed or an error occurs and the page is not correctly displayed? Could you try to see if there is an error in the log file?
I´ve upgraded from 188.8.131.52 to 184.108.40.206 as you can see in version history:
220.127.116.11 2 4 3 0 13-01-2014
18.104.22.168 2 4 2 0 18-06-2013
And that's what i found in the error.log file:
ojs2 has produced an error
Message: WARNING: reset() expects parameter 1 to be array, null given
In file: /usr/share/ojs/ojs/lib/pkp/classes/core/VirtualArrayIterator.inc.php
At line: 54
PHP Version: 5.3.3-7+squeeze18
Apache Version: Apache/2.2.16 (Debian)
DB Driver: mysql
DB server version: 5.1.73-1, referer: http://proxy.furb.br/ojs/index.php/rbdr ... portPlugin
FYI, it doesn't happen to all journals hosted.