Sorry, but we provide software that other people install on their websites.
We're based in the UK and have no affiliation with VicRoads.
I'm guessing you used this website and need further help:
https://accessibleparking.atlassian.net/wiki/spaces/AMPHP/overview
Try one of the following:
Phone – 1300 965 677
Speak to your local council
Go here – https://www.vicroads.vic.gov.au/safety-and-road-rules/road-rules/disability-parking.