The printer is displaying the message "The project file is invalid!"
Error name: Invalid project
Error code: #10521
This error is shown when the model chosen for printing is corrupted.
Make sure you have the latest version of PrusaSlicer. Then, reslice the model and try the print again.
If you have a question about something that isn't covered here, check out our additional resources.
And if that doesn't do the trick, you can send an inquiry to [email protected] or through the button below.