I connected by ssh and wrote the commands you suggested.
This is the output... port is not showed (it should be :80 by default).
pi@raspberrypi:~ $ sudo systemctl stop reef-pi.service
pi@raspberrypi:~ $ sudo reef-pi db show reef-pi settings
{"name":"Freccialata's Aquarium","interface":"wlan0","address":"0.0.0.0","display":false,"notification":true,"capabilities":{"dev_mode":false,"dashboard":true,"health_check":true,"equipment":true,"timers":false,"lighting":false,"temperature":true,"ato":false,"camera":false,"doser":false,"ph":true,"macro":false,"configuration":true,"journal":false},"health_check":{"enable":true,"max_memory":500,"max_cpu":2},"https":true,"pprof":false,"rpi_pwm_freq":100,"prometheus":false}
pi@raspberrypi:~ $ sudo systemctl start reef-pi.service
I aslo tried to open chromium-browser by terminal...
pi@raspberrypi:~ $ chromium-browser
http://192.168.178.230
--disable-quic --enable-tcp-fast-open --ppapi-flash-path=/usr/lib/chromium-browser/libpepflashplayer.so --ppapi-flash-args=enable_stagevideo_auto=0 --ppapi-flash-version=
libEGL warning: DRI2: failed to authenticate
[4304:4304:1122/090203.048757:ERROR:sandbox_linux.cc(369)] InitializeSandbox() called with multiple threads in process gpu-process.
[4252:4437:1122/090203.726939:ERROR

bject_proxy.cc(632)] Failed to call method: org.freedesktop.DBus.Properties.Get: object_path= /org/freedesktop/UPower: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.UPower was not provided by any .service files
[4252:4437:1122/090203.727980:ERROR

bject_proxy.cc(632)] Failed to call method: org.freedesktop.UPower.GetDisplayDevice: object_path= /org/freedesktop/UPower: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.UPower was not provided by any .service files
[4252:4437:1122/090203.728991:ERROR

bject_proxy.cc(632)] Failed to call method: org.freedesktop.UPower.EnumerateDevices: object_path= /org/freedesktop/UPower: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.UPower was not provided by any .service files
Fontconfig error: Cannot load default config file
I tried the follow commands too:
chromium-browser
http://192.168.178.230:80
chromium-browser
http://192.168.178.230:8080
chromium-browser
https://192.168.178.230:80
chromium-browser
https://192.168.178.230:8080
Any other suggestion?