Zero Point Micro Debug Help needed / only one low volume repeat.

[MAXstruments]

Hallo,
I tried everything getting this project to work. Many hours with no luck.
But I'm out of ideas and knowledge how to proceed. :-)
I checked the wiring, components, soldering and everything for several times. But I've found no mistakes.

I have not connected the mod toggle jet and have no clamp mod done.

Problem:
I have a clean and dry signal through the effect.
If I turn all the poti's to maximum i can hear one repeat.
But it is not very loud.  I measured the regulator and it outputs 4,9v.

IC Voltages:

IC1 (TL072) 1 - 4,8v 2 - 4,8v 3 - 4,8v 4 - 3,1mV 5 - 4,4v 6 - 4,8v 7 - 4,8v 8 - 9,6V

IC2 (PT2399) 1 - 4,9v 2 - 2,4v 3 - 3,4mv 4 - 3,5mV 5 - 2,7v 6 - 4,4v 7 - 11mV kind of moving 8 - 0,5V 9-16 - 2,5V

IC3 (TL062) 1 - 3-6v moving 2 - 4,7v 3 - 4-5v moving 4 - 60mV 5 - 4,7v 6 - 4,7v 7 - 4-5v moving 8 - 9,5V