Django Admin-无法删除某些用户

当我使用django admin删除一些用户时，它返回以下错误：

ERROR base handle_uncaught_exception Internal Server Error: /admin/auth/user/
Traceback (most recent call last):
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/django/core/handlers/base.py", line 235, in get_response
    response = middleware_method(request, response)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/middleware.py", line 44, in process_response
    parser=parser)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/minify.py", line 46, in html_minify
    mini_soup = space_minify(soup, ignore_comments)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/minify.py", line 69, in space_minify
    space_minify(child, ignore_comments)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/minify.py", line 69, in space_minify
    space_minify(child, ignore_comments)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/minify.py", line 69, in space_minify
    space_minify(child, ignore_comments)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/minify.py", line 69, in space_minify
    space_minify(child, ignore_comments)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/minify.py", line 69, in space_minify
    space_minify(child, ignore_comments)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/minify.py", line 69, in space_minify
    space_minify(child, ignore_comments)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/minify.py", line 69, in space_minify
    space_minify(child, ignore_comments)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/minify.py", line 69, in space_minify
    space_minify(child, ignore_comments)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/htmlmin/minify.py", line 101, in space_minify
    soup.string.replace_with(new_string)
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/bs4/element.py", line 231, in replace_with
    self.extract()
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/bs4/element.py", line 258, in extract
    del self.parent.contents[self.parent.index(self)]
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/bs4/element.py", line 938, in index
    for i, child in enumerate(self.contents):
  File "/home/yuanyin/.virtualenvs/transcats/lib/python3.5/site-packages/gunicorn/workers/base.py", line 192, in handle_abort
    sys.exit(1)
SystemExit: 1

---

但要明白：它并不是总是出现。当我试图删除一些用户时，它不会出现；当我尝试删除其他人时，会出现此消息。发生了什么事？

gunicorn可能正在中止一个很长的请求。尝试设置为更高的值