Launch error, Help please

[SilverHawk11]

Hey, I bought game from Steam, installed and downloaded,
downloaded and installed PR.
I have problem when I open PR
I get this error

20: Error validating file:

D:\Steam\SteamApps\common\Battlefield 2\mods\pr\bin\Reality.BF2.dll

A required certificate is not within its validity period when verifying against the current system clock or timestamp in the signed file (0x800B0101)

When I click OK it closes window and game does not start.

Please help me.

[SilverHawk11]

Actually I found fix for this really fast.
You need to change date to 2013 and run game.