Loose 2 pin connector in moondrop starfields(help needed)

Hi everyone,
about half a year ago i purchased the (second-hand) moondrop starfields as my first ever iem. I’ve been using them everyday with no problem whatsoever with UTWS1(mmcx type with a mmcx to 2 pin adapter). Today when I tried to use them but the left earphone wasn’t working and I found out the problem: the connector on the iem. I don’t know why it suddenly stopped working I wasn’t plugging and unplugging often. Now it only works with specific position of the adapter(when I put them on it usually stops working). Is there a fix to this?