Hello. can somebody help me, I'm having S9 with latest stock firmware, but one of the hashboard works shows normal GH/S(RT) and after few minutes 0. and thats keep going all day. i have tried different firmwares, unplugged and replugged all the cables a but the result remained same.

Here is log(its divided into 3 links due to the size) and pictures.

https://imgur.com/a/bbLqFf8
https://pastebin.com/ZLAJynQk
https://pastebin.com/BLVznWvr
https://pastebin.com/u6aJw7Hr