Generic function in parameter?

If i remove the <> template class, i get this message:

Error	C2672	'UTimer::SetTimer': no matching overloaded function found
Error	C2783	'void UTimer::SetTimer(float,TBaseDelegate<void>::TBaseDelegate<TTypeWrapper<void>>::TUObjectMethodDelegate<UserClass>::FMethodPtr,bool)': could not deduce template argument for 'T1'

I have to remove something from the ;h too?

The stopjump function .H:

void StopJump();

And the .cpp:

void AC_Player::StopJump()
{
	BisJumping = false;
}