PinballX system tables folder not found
What it means
PinballX looks for this system's tables in a folder that is not there, so its tables may not be found or launched.
Why it happens
The tables folder was moved, renamed or deleted after the settings were written; PinballX still names the old location.
How Pincab Toolbox detects it
The scan reads Config\PinballX.ini. For each enabled Visual Pinball, Future Pinball or custom system whose tables folder is written as a full path, it checks that the folder exists. If its drive is not on this PC, or the path is relative or contains a variable, it says nothing.
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. Partly covered, read only: PinballX and PinballY (their settings and game lists). Not covered: Future Pinball, Pinball FX, Visual Pinball 9 and the other frontends.