Ambika Led 9 is not working

The Led 9 (above switch 2) is not working because there is no voltage.
The display shows the filter page correctly.
Where could be the mistake?

i’d try first to redo the solder joints that lead to and from the led.

Check that there are no shorts on adjacent pins of the 74hc595. Check that the 470R resistor limiting the current flowing into the LED is correctly soldered.

Soldered the resistors next ic 11 again and now it works fine! Thank you!