Traceback (most recent call last):
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/request/__init__.py", line 1283, in run
    handler(self.page.page_name, self)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/action/__init__.py", line 229, in do_show
    if not request.user.may.read(pagename):
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/security/__init__.py", line 145, in <lambda>
    return lambda pagename: _check(self.request, pagename, self.name, attr)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/security/__init__.py", line 39, in _check
    return acl.may(request, user, right)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/security/__init__.py", line 308, in may
    is_group_member = request.dicts.has_member
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/request/__init__.py", line 366, in getDicts
    dicts.scandicts()
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/wikidicts.py", line 338, in scandicts
    dictpages = request.rootpage.getPageList(user='', filter=isdict)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/Page.py", line 1686, in getPageList
    cachedlist = request.cfg.cache.pagelists.getItem(request, 'all', None)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/Page.py", line 85, in getItem
    self.refresh(request)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/Page.py", line 111, in refresh
    new_pos, items = elog.news(old_pos)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/logfile/editlog.py", line 232, in news
    self.seek(oldposition)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/logfile/__init__.py", line 379, in seek
    self.__rel_index = self.__buffer1.offsets.index(position)
ValueError: list.index(x): x not in list

Additionally cgitb raised this exception:
Traceback (most recent call last):
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/failure.py", line 168, in handle
    handler.handle()
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/support/cgitb.py", line 576, in handle
    doc = view.format(formatter, self.context)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/support/cgitb.py", line 354, in format
    return formatter.section(self.formatContent(), {'class': 'cgitb'})
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/failure.py", line 41, in formatContent
    self.formatDebugInfo(),
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/failure.py", line 97, in formatDebugInfo
    self.formatTraceback(),
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/failure.py", line 110, in formatTraceback
    return self.formatAllTracebacks(self.formatOneTraceback)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/failure.py", line 122, in formatAllTracebacks
    tracebacks.append(formatFuction((ttype, tvalue, tb)))
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/support/cgitb.py", line 434, in formatOneTraceback
    self.formatter.orderedList(self.tracebackFrames(info),
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/support/cgitb.py", line 445, in tracebackFrames
    frames.append(frame.format(self.formatter))
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/support/cgitb.py", line 201, in format
    vars, highlight = self.scan()
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/support/cgitb.py", line 290, in scan
    vars = self.scanVariables(reader)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/support/cgitb.py", line 305, in scanVariables
    value = getattr(parent, token, __UNDEF__)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/request/__init__.py", line 366, in getDicts
    dicts.scandicts()
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/wikidicts.py", line 338, in scandicts
    dictpages = request.rootpage.getPageList(user='', filter=isdict)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/Page.py", line 1686, in getPageList
    cachedlist = request.cfg.cache.pagelists.getItem(request, 'all', None)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/Page.py", line 85, in getItem
    self.refresh(request)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/Page.py", line 111, in refresh
    new_pos, items = elog.news(old_pos)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/logfile/editlog.py", line 232, in news
    self.seek(oldposition)
  File "/usr/local/lib64/python2.5/site-packages/MoinMoin/logfile/__init__.py", line 379, in seek
    self.__rel_index = self.__buffer1.offsets.index(position)
ValueError: list.index(x): x not in list