"pure virtual function call" c++ error

[Kzuly]

every time i am on loading screen i get this error... do anyone have a fix for it?

[Terrorblade]

It helps to specify if it's the client or the emulator saying it.

[blupig]

It helps to specify if it's the client or the emulator saying it.

I'm guessing it's the game considering that Mooege is the only emulator worth using and it's made in C#, not C++.