Why the output level of out1, 2, 3, 4 is very small

Dear artists:
When I use the QC internal recording, I will often turn off the audio and then turn off the QC, every time there is a loud current, after updating the 1.10 system. There is almost no sound from my 1234 output port, but the display level is very normal. I don’t know if the rear interface is burned out or a software problem. Please solve it.i love you thank you
PS: When will China set up a maintenance point?!!!!!