so urgent

Hello,

i was working with the svn and tried to revert some files

then i started getting this error and right now i can not do anything with
my source

i repaired and re installed the software but no luck

please i need an urgent help with this issue

Subversion encountered a serious problem.
Please take the time to report this on the Subversion mailing list
with as much information as possible about what
you were trying to do.
But please first search the mailing list archives for the error message
to avoid reporting the same problem repeatedly.
You can find the mailing list archives at
http://subversion.apache.org/mailing-lists.html

Subversion reported the following
(you can copy the content of this dialog
to the clipboard using Ctrl-C):

In file
'D:\Development\SVN\Releases\TortoiseSVN-1.7.11\ext\subversion\subversion\libsvn_subr\token.c'
line 51: internal malfunction

-- 
Best Regards
Tina S.