Might not be able to be fixed LOL I see this in the code:

addFuel("coke_block", Short.MAX_VALUE); // F*** YOU VANILLA ! (Should be 6400*9 but it overflows ...)

Indeed, there is nothing that we can do about this. :P

Thanks for confirming. I was not sure if it was a hack to get pass it that failed or not haha. Sadly I don't understand most of the code.