Lifecore P2 not linked

I got these earbuds and they worked great, but I found headphones I liked more about a year ago, but those are currently being repaired, so i dug these out of my drawer, charged them, and turned them on, but I can only pair one at a time. I can pair them both separately but not together. Sometimes I can’t even pair the left one. And whenever I put the right bud in it’s case, it’ll charge for a little, flash red 3 times, then stop charging, I’ve tried resetting them, but that didn’t work, and when I tried to pair them to a new device, they showed up on the menu, but when i tried to connect them, the pairing notification didn’t even pop up, do any of you know what’s going on?