Issue with Flipsky VX1 Remote

I’ve run into quite a few problems with this remote after about a year of use. The first was when I accidentally powered off the remote while the board was moving. After I did that, the remote wouldn’t turn on for a short bit, but I eventually got it working through pressing a ton of buttons over and over. Then, the remote simply wouldn’t power on (same thing as before) but after a while one of the LEDs lit up and has stayed lit for a couple of hours now. The light that is lit is the 75% battery indicator light. I charged the remote all night and the light never turned off. When I plug it in the charging LED turns red. No combination of button presses/holds does anything. The remote just stays with that single LED lit. Any ideas on what the problem is?