PROBLEM WITH THE AUTOMATIC TRANSMISION

Hi, from some days ago I have some problem when I start the engine o
my Mazda 6 Automatic. When I put the shift in D and accelerate th
car dont run, the transmission slippery. Take around 30 minutes an
no problem. Only when the car is stopped for more than 6 hours. Als
my 6 have a HOLD buttom, sometimes nor always the light start t
appear, ON and OFF repeteadly. I have to turn off the engine and th
star On again and no problem
Today with my Scanner appear 2 CODES (NO CHECK LIGHT APPEAR

The Codes are

P0733 and P084

Any help with this?

Thanks in advance