I’ve tested this on several machines all using Whonix 13.
After an update today the gateways will no longer load Whonixcheck and just throw an error up saying /etc/tor/torrc is configured incorrectly.
If you # out the following:
HiddenServicePort 80 10.152.152.11:80
Then the error will go away, so it’s throwing the error up in relation to these two lines.