Retroarch Wii zx81 Core Problem

Hi :

When I run ZX81 emulator (81_libretro.dol) and open a .p or .tzx files. I get this picture. I tried changing all the core configuration but nothing. Is there anybody that can run this emulator in WIi? Please anybody con help me?? This is my favorite 80s computer and I´ll like run it in my WII.

Tnx