Traceback (most recent call last): File "/srv/onionoo.torproject.org/onionoo/bin/network/onionoo", line 455, in <module> total_relays_network_tor_platforms = Gauge(gauge, "Current number of relays per tor platform {}".format(platform), registry=registry) File "/usr/lib/python3/dist-packages/prometheus_client/metrics.py", line 320, in __init__ labelvalues=labelvalues, File "/usr/lib/python3/dist-packages/prometheus_client/metrics.py", line 90, in __init__ raise ValueError('Invalid metric name: ' + self._name) ValueError: Invalid metric name: total_relays_network_tor_platform_Tor_0_4_6_8_on_Linux