Traceback (most recent call last)
  File "/usr/local/bin/prometheus-blazegraph-exporter", line 305, in <module>
    sys.exit(main())
  File "/usr/local/bin/prometheus-blazegraph-exporter", line 293, in main
    REGISTRY.register(PrometheusBlazeGraphExporter(
  File "/usr/lib/python3/dist-packages/prometheus_client/registry.py", line 26, in register
    names = self._get_names(collector)
  File "/usr/lib/python3/dist-packages/prometheus_client/registry.py", line 66, in _get_names
    for metric in desc_func()
  File "/usr/local/bin/prometheus-blazegraph-exporter", line 205, in collect
    metric_value = self.get_counter(metric_name)
  File "/usr/local/bin/prometheus-blazegraph-exporter", line 73, in get_counter
    for cnt in el.getiterator('c')
AttributeError