UPDATE:
I moved the hash board to a different slot and now slot #3 is not working so its definitely an issue with the hash board itself. There is zero corrosion. Everything still looks brand new.
I currently use NiceHash but I moved to F2pool and it made no difference.
Now we found the issue that the hashboard is broken it's not a software issue but a hardware issue.
You can replace it with a new one but if you still want to repair the hashboard and you have some repair tools there is a guide on how to repair this hashboard
Check this link below
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https://www.zeusbtc.com/articles/information/3530-antminer-s19j-pro-hash-board-repair-guide