[room217au]

It could be that the folder names in some of the def files were changed from “toyglass” to “toyglass000” for example.
Administrator said this is because of the truck needing to be backwards compatible in case folks wanna run the toys mods and so on.
The .pmd file is where the data for the positions of the locators for accessories is kept.
If the folder containing the files that call the .pmd file(s) are unavailable (ie. foldername change), then the error and possible crash can occur.