Use the displayed error, exact system state, and stopped stage to separate mapping, path, sensor, material, profile, and hardware causes before attempting a manufacturer-specific recovery.
Compare the Bambu Lab A1 and P1S by enclosure, material labels, nozzle and plate context, and profile applicability rather than by speed or print quality.
Build a system-specific material map for automated filament hardware, then verify the physical path, sensors, slicer assignments, and a small tool change before a long print.