Error !

GlogEngineNotExistsRecordError: Row with key 'boifree' isn't in table 'Users'

%> <div class="comment-item item"> <div class="user with-context-menu"> <a href="${comment['publisher'].url()}" class="isuser"> <img class="avatar_small" src="${comment['publisher'].avatar()}" alt="your photo"> </a> <a href="/api/context.user?nickname=${comment['publisher']}" class="showTip"><img src="${config['static.server']}/css/gfw/elements/information.png" alt="Information" class="infor" /></a> </div> <div class="data">
/var/www/g-com/live/src/../glogengine/nosql/lazy_dict.py, line 288:
(to_unicode(pk), self._cf.column_family)
/var/www/g-com/live/src/../glogengine/nosql/mutated_dict.py, line 139:
column_count=column_count)
/var/www/g-com/live/src/../glogengine/nosql/mutated_dict.py, line 246:
self.load()
/var/www/g-com/live/src/../glogengine/nosql/entity.py, line 213:
return self.data[attr]
/var/www/g-com/live/src/../glogengine/user/base.py, line 69:
return super(BaseUser, self).__getitem__(attr)
/var/www/g-com/live/src/lib/glogster/user/user.py, line 631:
return url('profile-local', nickname=self['nickname'], **kwargs)
/var/www/g-com/live/src/templates/item/comment.tpl, line 7:
<a href="${comment['publisher'].url()}" class="isuser">
/var/www/g-com/live/src/templates/item/comment.tpl, line 61:
</%def>
/var/www/g-com/live/src/templates/item/comment.tpl, line 58:
${get(c)}
/var/www/g-com/live/src/templates/widget/glog/comments.tpl, line 12:
${comment.list(comments)}
/var/www/g-com/lib/python2.6/site-packages/mako/runtime.py, line 734:
callable_(ctx, **_kwargs_for_include(callable_, context._data, **kwargs))
/var/www/g-com/live/src/templates/page/glog/view.tpl, line 66:
<%include file="/widget/glog/comments.tpl"/>
/var/www/g-com/lib/python2.6/site-packages/mako/runtime.py, line 865:
callable_(context, *args, **kwargs)
/var/www/g-com/lib/python2.6/site-packages/mako/runtime.py, line 839:
_exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
/var/www/g-com/lib/python2.6/site-packages/mako/runtime.py, line 807:
**_kwargs_for_callable(callable_, data))
/var/www/g-com/lib/python2.6/site-packages/mako/template.py, line 452:
as_unicode=True)
/var/www/g-com/live/src/lib/common/helpers.py, line 56:
response = template.render_unicode(**out_context)
/var/www/g-com/live/src/controllers/page.py, line 187:
return render(self.template, context)
/var/www/g-com/live/src/controllers/page.py, line 202:
self.render_main_block(*args, **kwargs) +