P0A80 code and hybrid fan blowing hard

Hello,

Two days ago, while driving my car, a red warning light with an exclamation mark inside a car symbol suddenly appeared on the screen, like this:


When I scanned for the error code, I received a P0A80 error. Additionally, there's a lot of noise coming from the hybrid fan near the right rear passenger seat. I think there might be a problem with the cooling part. Also, when I scanned the hybrid cells, I got the following result:


Only cell 7 appears to be lower than the others. Can anyone help with this problem? Could it be due to the hybrid battery or some other part (like the fan, cooling, etc.)?

Thank you.