Problem using RABCDAsm on a modded client

I am trying to use RABCDAsm to open a client modded buy Orape but it give me a memory error when I try to unpack client-mod-1.abc . This is especially weird as i have 16 GB of ram and it is not being used up. I can unpack the normal non modded client file: client-1.abc with no error. I can unpack both of the files with -0.abc on the end perfectly fine. Help?

ORape made clients are not disassembling-friendly. AKA you ain't decompiling shit.

Probably to prevent people to remove ads or something. @JustAnoobROTMG

So there is now way to use the mods for Orape and try to make my own in one client?