I can’t help with your wiring since the photos can’t show all of the destinations clearly. The wires are too jumbled.
Check the following:
Confirm that you are getting a signal back to the board at the RETURN pad. Confirm that the return signal is attached to the pad that has a small letter “T” next to it. This is a common error. All signal wires must be attached tot he pads with a “T”.
Confirm that you have a jumper installed at the R5 location.
If these are all OK, then you should reflow all solder joints on the board and at all jacks and pots.
If this does not help, send us better photos showing both sides of the board and all wiring to jacks and pots. You will need to untangle the wires so we can clearly see where each wire goes.