Code P0970, “transmission fail safe“ message stays on

I scanned the car for codes and it gave me a low pressure solenoid c code P0970.

I unscrewed the full plug and noticed no drip when the engine is hot or cold.I have tried filling the transmission. (4-5 quarts) The transmission fill hole overflows only when cold and not when I start the engine. So I’m not sure if I’m overfilling or not. I have pumped at least 4 quarts into the transmission and the “transmission fail safe“ notice on the dash will not go away. I’m not sure if I’m filling it incorrectly or perhaps I have to reset the computer.