Plugin missing in the required 32/64-bit version
What it means
The table loads a Visual Pinball process of one bitness, but the plugin it needs only exists for the other.
Why it happens
On a hybrid 32+64-bit install, it's easy to only ever download and place one bitness of a plugin — the tables using the other bitness keep failing while everything else looks fine.
How Pincab Toolbox detects it
A table requires a component (B2S or FlexDMD) at a given bitness, but no binary of that role was found measured at that same bitness.
What to do
One link in your 32/64-bit chain does not match the others. Everything must be the same bitness: Visual Pinball, the ROM engine, the DMD, the backglass. One odd one out and part of your tables break.
- Open the Diagnostic tab: Pincab Toolbox lists every component with its bitness. That is your starting point.
- Spot the line that does not match the others.
- First decide which bitness is yours: the one of the Visual Pinball executable PinUP Popper actually launches. Everything else must line up with it.
- Back up the offending component's folder before replacing it.
- Download the matching build from that component's official site.
- Close Visual Pinball and PinUP Popper, replace the files, and run the component's registration tool as administrator if it has one.
- Run a new scan: the chain in the Diagnostic tab should be fully green.
Check your own pincab
Pincab Toolbox is a free Windows scanner for Visual Pinball X and PinUP Popper. It finds and explains problems like this one. No account, no telemetry.
Download for freeCovered: Visual Pinball X (10.x) and PinUP Popper. Not covered: Future Pinball, Pinball FX, Visual Pinball 9 and the other frontends (PinballX, PinballY).