How do I fix my Alice Madness returns game on my PC?!?

In my game Alice madness returns I get to the part of the game where your receive the Umbrella weapon and I go up to it and i grab it but it wont let me use it and i need it in order to kill this monster. Nor is it logged into my weapons :( PLEASE HELP!!!!How do I fix my Alice Madness returns game on my PC?!?
It can`t be fixed but you can download the whole game from below source and then install it.

amnesia house