Hi,
Here is a link to just one [https://www.ebay.com/itm/New-Digitizer-Touch-Screen-Panel-for-Proscan-PLT9649G-9-Inch-Tablet/131725903199?epid=1659626757&hash=item1eab79c55f:g:13EAAOSw65FXsAIM|supplier] of the part.
It is not a recommendation to use them. It is shown to give an idea of the cost of the part.
There are other suppliers online that may suit you better. Just search for ''Proscan PLT 9649G digitizer part'' to get results