when the driver is unreadable, what did you do to get it work again?
how do you access the driver?
can you show us some screenshot?

I am unable to use the pen drive again, Windows almost crash when I plugged it windows, and in Linux it just cant read it because this format is damaged. (I have some experience with computers)

I don't have screenshots, but the pendrive just don't works again, that happend with 2 diferent devices. Maybe the problem is caused byt the way on how the data is read from the usb, probably the usb reach the maximun number or reads or writes. Is my only hipotesis

Do you try another USB drive with the router?