Aperture 3.4.4 Library Problem

After Aperture was updated to 3.4.4 I could not start the program again, when I initiate the program it tries to open the Aperture Library but it may stay in that condition even for hours without any result, at the end I close the application (the Aperture Bar is there, and you can also access the preferences) and it closes normally although it never finish opening, it permanently shows the next message:

These are the steps I tried before deciding start this discussion:

1. Used the Aperture Library I have in a backup hard drive that is cloning my primary HD regularly but no improvement.

2. Sent the Aperture app to the trash can and installed version 3 from scratch, after that installation I had to update to 3.4.4 because Aperture identified that the library was from a new version. After the new update the program succeded to open. When I closed and tried to open again I got nothing again.

3. In order to verify that the library is not corrupted I used the "Show Package Content" and can browse the information inside the library without any problem.

4. Changed the name of my Aperture Library and started Aperture but although I see that a new Library file is created but the original problem remains, Aperture never opens.

The original Aperture Library is a 70.24 GB file that contains adjustments for all the thousands of photos I used to manage with this application, not been able to open the program is causing a lot of frustration, specially because I keep taking pictures and saving them in the Hard Drive but I am not able to produce them or export them anymore.

I am not sure if somebody else experienced this problem but if not is important that Apples know that this is a very annoying problem that must be fixed ASAP.

Thanks