I unplugged the TS and plugged it back to the headphone out of the interface but I mistakenly connected the other end to iRig's amp out (instead of headphone in), after doing this, the interface stopped working as it always did, and I think it was damaged. I could hear a cleaner but weaker signal and only from left. I could indeed hear some output from the interface with this setup but it was too noisy and not loud enough so I tried connecting the TS cable to the left channel of one of the RCA outputs in the back of the interface (I guess I shouldn't do that?) and see if it makes a difference. I connected the iRig 2 to my phone through a 3.5mm cable and adapter and I connected my headphones to the iRig 2 with a 3.5mm cable with a TRS adapter. I initially connected the headphone output on the front of the interface to the iRig 2's headphone input with a very long TS cable (I now realize this was a bad choice because long TS cables are noisy). I have a Behringer UMC 404HD interface, a bunch of analog instruments (drum machine, synth, guitar) connected directly to it and then a digital piano coming through MIDI from Abelton. I was trying to send audio from my interface to clubhouse through my phone and I think I fried some parts of interface through the process.

Driver for umc 404 hd