Virtual stack 2610 series

[PinoGiuseppe]

Hello to all,
I would like your help to try to solve this problem:
I have ten 2010 series switches in stack that operate for five years.
After updating the bios of the commander (J9088A) Loggo and when I try to change switch me this error:

This is a dummy page to force a Manager login if any stack member is accessed from a Commander. See http_stack.c for more details

I tried to update the Firmware on the Commander, but the result does not change.
Give me some info?

Thanks

[PinoGiuseppe]

goodmorning,

please help me.

thanks