Hi Nicolas,
according to aeris (CC) one(?) [1] of your relays got seized/compromised [2].
Did you report it to tor directory authorities, so they can blacklist the relay?
thanks, nusenu
[1] InFlames - C46A33E7E56F4F3FF2D36308A37E3DA21CD100FB [2] https://twitter.com/aeris22/status/865317501525045248