KCS firmware on kincony chip of this server not working

[homeassistant144]

I am currently using this KC868 server board with CM4 model with homeAssistant installed on it and for the 16 digital input and output as well as the binary sensors of this KC868 board I was using mqtt inorder to communicate with homeassistant. everything worked well. I was controlling several lights as well as using the digital inputs for door window sensors. But now all of a sudden the kcs firmware seems to be not responding. HomeAssistant is still working but the rest part of the board is not working. 
This board shows IP too but when i ping to IP in browser in order to login, page doesn't load. keeps buffering.