I plugged a 1/4" cable into the input of my amp and in my wild stage moves i accidentally pulled it out violently. When I tried to plug it back in, I noticed that the very tip of it (above the ring) had come off and is now wedged in my amp. I can't get it out. do I have to replace the entire input connector? can this cause any permanent damage? Please help. I think it's causing the power amp to short out.