Legitimate 3DS roms will never end in .exe , .msi , or .bat . If a website asks you to download an installer to get your ROM, close the tab immediately.
If the game boots but shows version 1.0 on the title screen, the repack did not bundle the update correctly. You will need to download the standalone file and install it manually via your emulator's "Install CIA" menu. Audio Stuttering pokemon y update 15 decrypted 3ds eur usa repack