Check Legend of Zelda: Link's Awakening DX Randomizer Game File CRC

You likely need headerless version of the game file that is required. This tool can remove the header for you.
The following are known valid CRC codes for the required game file.

06887A34: Legend of Zelda: Link's Awakening DX (GBC) (Rev B)
97822948: Legend of Zelda: Link's Awakening DX (GBC) (Rev A)

ROM info for the file you provided: