I also have the "Cannot receive LCD text from controller script" When I check the router's device list, there is no wifi signal coming from the ESP controller. After I rebooting the ESP, it comes back online. Could the controller be going to sleep? I am using the Makerfocus ESP8266 Mini...
I found BrewPiLess. I was hopping their iSpindel support would help in Fermentrack development for the Ispindel support as they use the same ESP8266 :)