Hacking I need some help fixing my DS-DOOM getting a Guru Meditation error.

[bennieboy07]

I have been trying to get dsdoom working for me on my DS Lite, but every single method I have tried i end up getting a Guru Meditation error.

Anyone know how to fix this?
The R4 Card I am using is this.

R4: Revolution for DS (NDSL./NDS)

Any help would be greatly appreciated, just wanna play doom on the go.