Hi,
When the yellow and red LEDs are blinking it means, it detected something that obstructs or jam the motors.
Please try the following and let me know how it goes:
1- Turn the unit off and remove the bonnet and the globe.
2- Check for gear/motor obstruction and clean or remove anything that may be blocking it.
3- Reassemble the unit and verify proper litter levels.
4- Power on, if the problem persists, let me know.
Sincerely,