Error creating account

[anonymous]

creating an account from this link http://evemon.battleclinic.com/cgi-bin/trac.cgi/register

and I receive this error

Python Traceback
Traceback (most recent call last):
  File "D:\Python24\Lib\site-packages\trac\web\main.py", line 406, in dispatch_request
    dispatcher.dispatch(req)
  File "D:\Python24\Lib\site-packages\trac\web\main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "build\bdist.win32\egg\acct_mgr\web_ui.py", line 314, in process_request
  File "build\bdist.win32\egg\acct_mgr\web_ui.py", line 53, in _create_user
  File "build\bdist.win32\egg\acct_mgr\api.py", line 98, in set_password
  File "build\bdist.win32\egg\acct_mgr\htfile.py", line 55, in set_password
  File "build\bdist.win32\egg\acct_mgr\htfile.py", line 107, in _update_file
IOError: [Errno 2] No such file or directory: u'D:\\SVN\\trac.htdigest'

[eblot]

Please contact the administrator of evemon.battleclinic.com.

There's nothing Trac developers can do for this (it's an installation issue on the battleclinic.com web site, plus the error is related to a plugin)