@Ranjib MAJOR ISSUE today. as you know I had issues with my system alerting last week on the ATO. I have been traveling all week away from home and now that i am home, something was amis. my Clam did not look good. Plus one of the BTA walked around. I went to move a frag away from it and thought WOW, that water is COLD> I went to check Reef-pi and could not login. I put my cooking thermometer in the tank and it read 68°! HOLY MOLY! This is not good. I could not access reef-pi so I power cycled it. as soon as it came up, it started blowing up my phone with ATO alerts and also the LOW temperature alerts. I checked and I am about 4 gallons low. This means the system has not been working properly for at least 4 days. I dont know where to go to diagnose this. It appears to be operational at this moment as I can access and heater and ATO is working.
ALSO, since the reboot today, I have no historical graph data. all of that is missing.
Tank is at 70° but i am sure it got as low as 65° during the night.
I am on version 2.2 and I show no errors in the web GUI. All equipment was powered as my lights were on and all water movement pumps had power.