Disable mods that add new world sites one by one. If the error stops, you’ve found the source.
Removing a mod mid-playthrough that added custom quest types can leave "ghost" entries in your save that have no valid label. rimworld err site label detected
Open the .rws file and search for the string ERR:[Site_label] . Disable mods that add new world sites one by one
This error typically signals a breakdown in the communication between the game's C# code and its XML data files. Common triggers include: rimworld err site label detected
: A quest site from a previously uninstalled mod still exists on your world map.