System error

I had an instant cash app deposit sent to my bank account wirh a negative balance and sent it instantly to have it post rigtb away but due to the system being down it applied my instant deposit for the following date since website having error now I owe Owe overdraft fees for 70$ amd feel it was not my fault but the cauee of the website being down that cauee my instant deposit that should of applied to my account and brought it to being current for the day since I did deposit an instant deposit