Old Engine Unpack 2.0 "Platform Error: Module Failed to Initialize"

(sorry for my shitty ass english)

hi, i recently download the Half Life 2 Old Engine Unpack 2.0, did all the thing in the readme text file but it doesn’t seems to work, i tried uncheking the “Enable Steam Community In-Game” but that still doesn’t works, i keeps saying the same thing “Platform Error: Module Failed to Initialize”

can someone please help me?