At https://tools.wmflabs.org/oabot/process?name=2015_in_paleontology (a rather heavy page):
Oops! Something went wrong. Error: No JSON object could be decoded Traceback (most recent call last): File "/data/project/oabot/www/python/venv/local/lib/python2.7/site-packages/flask/app.py", line 1612, in full_dispatch_request rv = self.dispatch_request() File "/data/project/oabot/www/python/venv/local/lib/python2.7/site-packages/flask/app.py", line 1598, in dispatch_request return self.view_functions[rule.endpoint](**req.view_args) File "/data/project/oabot/www/python/src/app.py", line 122, in process context = get_proposed_edits(page_name, force) File "/data/project/oabot/www/python/src/app.py", line 206, in get_proposed_edits filtered = list(filter(lambda e: e.proposed_change, all_templates)) File "./main.py", line 283, in add_oa_links_in_references edit.propose_change() File "./main.py", line 103, in propose_change link = get_oa_link(reference) File "./main.py", line 222, in get_oa_link resp = req.json() File "/data/project/oabot/www/python/venv/local/lib/python2.7/site-packages/requests/models.py", line 892, in json return complexjson.loads(self.text, **kwargs) File "/usr/lib/python2.7/json/__init__.py", line 338, in loads return _default_decoder.decode(s) File "/usr/lib/python2.7/json/decoder.py", line 366, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) File "/usr/lib/python2.7/json/decoder.py", line 384, in raw_decode raise ValueError("No JSON object could be decoded") ValueError: No JSON object could be decoded