Ok, that's new info for me. Read the guide on the first post and some "how to use dw hack" on youtube. Nowhere it said that you had to actually need to have the berry you choose with the DW.exe. Plus I've used the number 7 so far without any issues. So thought it wasn't a problem.
I got a lot of Pamtre Berries, so then I just enter "32" instead of the "7" for Oran Berry and it shouldn't get issues with the Ice Cream Game?