Auto aqua over filling and under filling

I’ve had my auto aqua setup for about 3 days now and it filled perfectly on the startup but now it’s over filling above the top sensor. I’ve tried covering the sensor because I have a aio so the light is on it but since I’ve covered it from the light it’s under filling. It only comes on for a little and it stops under the first sensor. Idk what else to try, the sensor is clean. The alarm doesn’t come on when it over filled either and the light stays solid blue all the time.