no news and version after ImpEx
 

I recently changed the domain name. I used ImpEx as per advice in order to replace URLs within the forum posts (it didn't work for me BTW), and after that there is no Latest version (it's says n/a) and there are no news in Admin CP. I just tried reinstalling vBulletin, but still no news and version. I run the latest 4.2.0 Patch Level 2.

How could I troubleshoot/fix this?

Thanks