(Please note if you are attempting to bring a bug or a technical issue to IO Interactive’s support team’s attention - the best place to post this information is the #player-support category
You may particularly want to check the Known Issues thread:
I own the disc version. I have fully installed, uninstalled, reinstalled. I can only play prologue. I can’t play any of the hitman 3 campaign. It just tells me to buy it again.