servers are down is probably why you got error. Try again when the servers are back up (hopefully tomorrow) but even then it may take a few days to get everything on http://www.villagersandheroes.com back up
Anything related to the domain name : "Villagersandheroes.com" will be down due to the servers being down or technical difficulties. Anyting related to the domain name "madottergames.com" is currently working. I'm sure in due time the devs will get this working again.
Ah that's unfortunate... Thanks for letting me know. There are abilities in the rest of the trees that are missing as well. If it was open source I guess someone with programming skills could write the code.