DIAGNOSIS The front bumper's collision sensors are oversensitive or the rug's fibers are triggering the cliff sensors beneath the robot.
FIX In the Roborock app, go to the specific room or map setting. Enable "Carpet Boost" and "Avoid Carpets" for that zone. This tells the robot to recognize the rug and lift the mop, increasing suction and reducing contact.
IF THAT DIDN'T WORK Physically tape over the two front cliff sensor windows (temporary test only) to see if they're the cause. If it works, the sensors need cleaning with a dry microfiber cloth.
HEADS UP Do not run the robot with tape over sensors permanently. It will not detect real cliffs. This is a diagnostic step only.