Chosen Solution
So I somehow spelt ramen broth on my table and some of it apparently got into my triangle button and it was working but now it’s not, how can I fix this? If I can
Look for corrosion or replace the rubber disk thing under the button.
Try cleaning the contacts on the rubber silicone pad and on the plastic blue membrane with alcohol. If that doesn’t work, you might have caused damage to it and will need to be replaced.