NoneType' object is not subscriptable

[ALBIHANY]

Can somebody help me out here please, The workflow was working fine i literarily created images 5 munities right before this error ( i haven't close computer, or even the browser page, if im not wrong and reading the error message correctly the issue is from the refiner checkpoint, and maybe it got corrupted but i replaced it with another copy and still the issue remains, what should i do ?

[coffebb]

Same for me