You could perform a minimal install of X2 Producer or older to get V-Vocal back. After selecting the X2 advanced install option, here is what is needed
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Once installed, the project will open normally and it is possible to continue using V-Vocal or remove the effect from the clip(s) using Region FX menu.
Otherwise, stepping through the plug-ins in safe mode will give an option to skip loading V-Vocal. To open in safe mode hold down the SHIFT key when opening the project.