InvoSpa Shiatsu Foot Massager

The first massage gun I got did not work out of the box. I figured it was just something that happened during shipping and an unlucky experience. I was able to exchange no problem and got the second one very quickly. The second one worked great out of the box. I was impressed by the size and weight, the number of attachments, the quiet nature of the motor, and the variety of pulse settings. I've been using it very happily for 2 months. I wouldn't say I was an overuser, since I only needed to charge the battery every 2 weeks or so. Last night it stopped. I now have this error code and no way of fixing it. I've tried everything that I can think of as well as a few suggestions I found on the internet. Nothing works. It is now an interesting brick since I can't exchange it anymore because it's been longer than 30 days. I wanted to just contact the seller but there don't seem to be any links any longer to contact them to come up with any other solutions. Fortunately, I did buy this on prime day so it didn't cost me $140 (which was its original list price) but I'm still annoyed that I spent any money on this at all. I gave it two stars for battery life and pain relief since while it worked it was actually excellent. It's too bad it seems to only have a lifespan of one to two months.