Compile and link f-office again.
I had to merge koabstraction and f-office together cause it seems the design of koabstraction is borg'd in a way that doesn't allow an other fix beside rewriting to use proper oop or merging them both together again.

Sorry, but better something that compiles and doesn't have the perfect design then something that has the perfect design but doesn't compile.
Please fix it yourself if you have a better idea, thanks :)