"{'message': 'An uncaught exception happened while servicing this request. You can investigate this with the `zappa tail` command.', 'traceback': ['Traceback (most recent call last):\\n', ' File \"/var/task/handler.py\", line 531, in handler\\n with Response.from_app(self.wsgi_app, environ) as response:\\n', ' File \"/var/task/werkzeug/wrappers/base_response.py\", line 287, in from_app\\n return cls(*_run_wsgi_app(app, environ, buffered))\\n', ' File \"/var/task/werkzeug/test.py\", line 1119, in run_wsgi_app\\n app_rv = app(environ, start_response)\\n', ' File \"/var/task/zappa/middleware.py\", line 55, in __call__\\n response = self.application(environ, encode_response)\\n', ' File \"/var/task/flask/app.py\", line 2463, in __call__\\n return self.wsgi_app(environ, start_response)\\n', ' File \"/var/task/flask/app.py\", line 2449, in wsgi_app\\n response = self.handle_exception(e)\\n', ' File \"/var/task/flask_cors/extension.py\", line 161, in wrapped_function\\n return cors_after_request(app.make_response(f(*args, **kwargs)))\\n', ' File \"/var/task/flask/app.py\", line 1866, in handle_exception\\n reraise(exc_type, exc_value, tb)\\n', ' File \"/var/task/flask/_compat.py\", line 39, in reraise\\n raise value\\n', ' File \"/var/task/flask/app.py\", line 2446, in wsgi_app\\n response = self.full_dispatch_request()\\n', ' File \"/var/task/flask/app.py\", line 1951, in full_dispatch_request\\n rv = self.handle_user_exception(e)\\n', ' File \"/var/task/flask_cors/extension.py\", line 161, in wrapped_function\\n return cors_after_request(app.make_response(f(*args, **kwargs)))\\n', ' File \"/var/task/flask/app.py\", line 1820, in handle_user_exception\\n reraise(exc_type, exc_value, tb)\\n', ' File \"/var/task/flask/_compat.py\", line 39, in reraise\\n raise value\\n', ' File \"/var/task/flask/app.py\", line 1949, in full_dispatch_request\\n rv = self.dispatch_request()\\n', ' File \"/var/task/flask/app.py\", line 1935, in dispatch_request\\n return self.view_functions[rule.endpoint](**req.view_args)\\n', ' File \"/var/task/indralab_auth_tools/log.py\", line 129, in run_logged\\n resp = func(*args, **kwargs)\\n', ' File \"/var/task/indra_db_service/api.py\", line 328, in get_statements\\n return call.run(result_type=result_type)\\n', ' File \"/var/task/indra_db_service/call_handlers.py\", line 120, in run\\n **params\\n', ' File \"/var/task/indra_db/client/readonly/query.py\", line 458, in get_statements\\n mk_hashes_q = self.build_hash_query(ro)\\n', ' File \"/var/task/indra_db/client/readonly/query.py\", line 927, in build_hash_query\\n return self._get_hash_query(ro, type_queries)\\n', ' File \"/var/task/indra_db/client/readonly/query.py\", line 1318, in _get_hash_query\\n query = self._base_query(ro)\\n', ' File \"/var/task/indra_db/client/readonly/query.py\", line 909, in _base_query\\n mk_hash, ev_count, belief = self._get_core_cols(ro)\\n', ' File \"/var/task/indra_db/client/readonly/query.py\", line 915, in _get_core_cols\\n meta = self._get_table(ro)\\n', ' File \"/var/task/indra_db/client/readonly/query.py\", line 1315, in _get_table\\n return ro.SourceMeta\\n', \"AttributeError: 'NoneType' object has no attribute 'SourceMeta'\\n\"]}"