Menu buttons all have the same text

I transferred my blog from my computer (Xampp) to my server. On my computer everything was working fine, but on the server the header menu and submenu links have all the same text (“Welcome, admin”). The links are working correctly though. I’m using the Freshy 2 theme, but other themes have the same problem.
Can anybody point me in the right direction about troubleshooting this problem ?

Thanks,
Rafael