Site Rom Issue- Minish Cap

System: Game Boy Advance

I have encountered some problems with this sites Minish Cap Rom. Specifically, about halfway through the game in two nearby areas the game either turns to black and audio cuts out, or the screen turns white after walking past a certain point/ returns to the title screen. After shrinking to Minish size in the Cafe and walking north to a Minish in the middle of the rafters, the screen turns white, etc. On accessing the back of Stockwells shop through this areas exit, the screen briefly flashes some tiles and the health bar, then cuts to black and plays white noise.