HRA model , TypeError: 'NoneType' object is not subscriptable

Thank you for your reply! The previous problem has been solved, but when I tried to change the indicators of exposure(E) and consequence(C), a new problem appeared again in the running of the model.Some new indicators have been added to the criteria(exposure_consequence_criteria).

When I run the HRA model ,there is a error about ValueError: The following stressor-habitat pair(s) do not have at least one exposure rating,
[(‘B2’, ‘512’), (‘B2’, ‘522’), (‘B2’, ‘532’), (‘B2’, ‘112’), (‘B2’, ‘122’), (‘B1’, ‘512’), (‘B1’, ‘522’), (‘B1’, ‘532’), (‘B1’, ‘112’), (‘B1’, ‘122’), (‘A2’, ‘512’), (‘A2’, ‘522’), (‘A2’, ‘532’), (‘A2’, ‘112’), (‘A2’, ‘122’)].
i don’t know to run it success. I hope someone can help me solve this problem.
I will share my Model operation data .

exposure_consequence_criteria.csv (5.75 KB)

InVEST-Habitat-Risk-Assessment-log-2021-03-06–11_08_28.txt (5.32 KB)