The adapter we used all the time seemed to have a problem. I took it to the repair area this morning and asked a professional teacher to look at it for me. I didn’t know anything about it myself. So it’s usually my husband who wants to fix it. I asked a professional teacher to help us. See where the problem lies. But it seems like we’ve been using this adapter for a long time. I remember when we first got married, it was like my husband and I went to the electronics store to buy this adapter.