滚动条Django突然不能工作。属性错误:模块'lib'没有属性'x509_up_ref'

我的滚动条突然在我的Django Python应用程序上不起作用。在我合并之前它一直在工作。看起来更像是openssl问题?

>>> import rollbar
>>> rollbar.init('xxxxxx', 'production') 
>>> rollbar.report_message('Got an IOError in the main loop', 'warning')
'xxxx-xxx-xxx-xxx-xxx'
>>> From cffi callback <function _verify_callback at 0x7f08351e8730>:
Traceback (most recent call last):
  File "/home/deploy/railerdotcom/railerdotcomenv/lib/python3.5/site-packages/OpenSSL/SSL.py", line 313, in wrapper
    _lib.X509_up_ref(x509)
AttributeError: module 'lib' has no attribute 'X509_up_ref'

我正在使用:

Django==1.11.7
Ubuntu version 16.04