wii 64 games

ok so ive played banjo tooie and i noticed two different areas i cant go to theres the unga bungas cave tryin to get in there from the treasure chamber,then theres witchyworld its like everytime i walk near boggys son(the fat one) theres a bug that makes the screen go black and a bunch of letters.are they gonna be working on anything to improve the wii64 so we can play the games we want

They are trying to improve Wii64 all the time. However, it is difficult. If you could take a picture of that Exception (DSI) and upload it, it might help the developers out.

You should report the error if it's not already reported. You could try switching off the dynarec just while you are doing what you were doing then switch it on again.