Before contacting us, the ideal is to do a couple of simple tests, which although they seem obvious many times are the cause of a problem that does not really exist.
First disconnect the pedal from all external cables, guitar, amp, and power.
Connect the guitar directly to the amplifier and check that the cable works perfectly, then if possible also test the power supply with another effect.
If everything is ok, everything is reconnected following the diagram shown in the pedal box, GUITAR-CABLE-PEDAL-CABLE-AMPLIFIER.
If there are more effects in the chain, test the pedal individually, that is, remove it from the chain and follow the diagram on the box.