The XKit servers are completely down. So here is what I believe happened, posting because of my transparency policy:
- I went to sleep.
- Because of a spike in the network activity, not sure if legit or a (successful) DoS attack, Yahoo, which provides my webhosting, shut some of the subdomains down to protect the servers (which I believe is completely fair.)
- XKit, unable to update itself when the time for automatic updates came, started hammering the server again and again hoping it would reach it, caused other subdomains to get shutdown also, and is still doing that.
The last time this happened, I just created a bunch of new subdomains and redirected XKit to use them, but unfortunately, they are now preventing me (or having some technical difficulties) from doing the same, so I don’t know exactly what to do, and still am searching options.
In the meanwhile, if you are getting the popup, just ignore that little bugger and do not reset XKit.
If you did reset XKit, I’m terribly sorry to say this but the only way to access Tumblr on a computer with XKit installed is to temporary disable it. Instructions are available on the FAQ.
Again, I am terribly, terribly sorry about this, and working hard to fix it as soon as possible. Thank you for your patience.