Yes, I have. It still stays at 0L/h

0L/h on the display, I am not currently using aquasuite. There is no ball valve or kinked hose and the temperatures are good. The only thing that is the problem is the flowrate on the display.

The high flow next has been working properly up until recently for me. My issue is that it is not reporting flow rate properly when it used to report it no problem. It is showing 0L/h when my pump is set to 100% rpm when it used to say 180 L/h at that same speed. How do i address this issue?