Can't start the game. need help

I purchase Risk of Rain 2 from PSN US STORE.
than i start the app to title game menu.I can’t go to any option menu.The game stuck at title menu Singleplayer when i select other menu the tap back to Singleplayer again but nothing happen.First i delete game and reinstall but nothing fix.
How do i fix the problem?

Check that there isn’t an update available that failed to auto-download. If it’s not that, and a proper power down/restart of the PS4 doesn’t resolve the issue, you will want to file a support ticket for further assistance.