"An error occured while accessing wii system memory."

[Unify]

I'm trying to run Rune Factory Frontier, and I get the error that's in the title.

My setup is;
MS Windows 7 Home Premium 64-bit
AMD Phenom II X4 955
4.0GB Dual-Channel DDR3 @ 668MHz (9-9-9-24)
ASUSTeK Computer INC. M4A87TD/USB3 (AM3) Chipset Model 870
ATI Radeon HD 5670

Would it be a problem with this, or possibly with the game/my settings in Dolphin?
Thanks in advance for any help.