PinballY media or table database folder not found
What it means
A PinballY setting points to a media or table database folder that does not exist on this PC.
Why it happens
The setting holds a full path. If the folder was moved, renamed or deleted after the setting was written, it no longer leads anywhere; PinballY's own help says a fixed path must then be corrected by hand. The scan cannot tell which of these cases is yours.
How to fix it
In PinballY's settings, Folder Options: set this folder to where the files really are on this PC, or choose « Use the PinballY folder ».
How Pincab Toolbox detects it
The scan reads PinballY's Settings.txt. For the two settings « MediaPath » (media folder) and « TableDatabasePath » (table database folder), when they hold a full path, it checks that the folder exists. It says nothing if the drive of that path is not on this PC (unplugged drive), nor for a relative path or one that contains a variable. Nothing is changed.
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.