The Original Prusa XL is showing the message "Check all tools if they are properly parked or picked".
Error name: Err Toolchanger
Error code: #17101
Ensure that the Toolchanger carriage is clean and free of debris. Make sure none of the dock pins are bent or damaged in any other way.
If the error occurs mid-print, manually park all the tools, home the printer, and resume the print.