Disgaea 3: Absence of Justice [BLES00452]

Guys, I need your help.

I'm running Disgaea 3 BLES00452 with no problems.

But... I want do install the update to have the trophies.
(EP1063-BLES00452_00-PDISGAEA3X000049-A0300-V0100-PE.pkg)

If I install it, I can run the game only the first time.
When I run it for the second time, I get this messages:

S LDR: Updates found at /dev_hdd0/game/BLES00452/!
F LDR: Disc directory not found. Try to run the game from the actual game disc directory.
E LDR: Failed to mount disc directory for the disc game
S LDR: Boot successful.

Here's what I do...
I delete the folder:
\dev_hdd0\game\BLES00452
And the game runs again. No problem.

I reinstall the update.
And the game runs... only the first time...
And I get the error again.

Anyone can help me with that?