Hi:
The failure code means that you need to replace the memory module that has failed.
Below is the link to the parts list for the product number you posted.
HP PartSurfer
It appears from the parts list that your notebook came with one 16 GB memory module.
If you did not install additional memory, then the bad memory chip will be easy to find since it is the only one.
If your notebook is still under warranty, contact HP support at the link below and submit a support case under the warranty.
Contact HP | HP® Australia
If not, below is the link to the service manual, where you can find the memory removal and replacement procedure.
h10032.www1.hp.com/ctg/Manual/c05695303
This would be a compatible memory module if you can get one in Australia...
Crucial 16GB DDR4-2666 SODIMM | CT16G4SFD8266 | Crucial.com