Many users have reported wm-bot's recent changes feed isn't working. The bot doesn't send any message about changes on the watched pages.
Saw the following in /opt/xmlrcs/nohup.out and restarted es2r.py. That seems to have fixed the feed, it immediately started reporting in #wm-bot again.
requests.exceptions.HTTPError: 502 Server Error: Bad Gateway for url: https://stream.wikimedia.org/v2/stream/recentchange Traceback (most recent call last): File "./es2r.py", line 18, in <module> for event in EventSource(url): File "build/bdist.linux-x86_64/egg/sseclient.py", line 39, in __init__ File "build/bdist.linux-x86_64/egg/sseclient.py", line 52, in _connect File "/usr/lib/python2.7/dist-packages/requests/models.py", line 893, in raise_for_status raise HTTPError(http_error_msg, response=self) requests.exceptions.HTTPError: 502 Server Error: Bad Gateway for url: https://stream.wikimedia.org/v2/stream/recentchange Terminated