Classic customizer won't load

[Bridget Larsson]

Recently, as in the last hour or so, I've had this problem where I
cannot access the classic customizer on tumblr.
This is a problem for me because the current customizer doesn't load
the custom themes that I'd like.
Or, it does load, but all you see is CSS coding across the page in
varying different colours.
I never had this problem before, but as I mentioned, in the last hour
or so every time I type in "http://tumblr.com/customize-classic", the
browser shortens it and takes me to the current customizer instead.
I've tried clearing my cache of all history and such and I've even
tried on three different browsers. Nothing's working.
Any idea about how I can edit my themes without the CSS coding popping
up, and/or get to the classic customizer?
Many thanks in advance, if you can help.

[Sean Zhu]

I'm 80% sure this means they're killing the classic version.