Nothing bad will happen if you ignore this. You’ll just keep getting the message on boot.
If you want to fix it, you’ll need to upgrade your BIOS. Find out what motherboard you have and go to the manufacturer’s website; then download the latest BIOS. Put that file on a FAT formatted thumb drive and boot to your BIOS (hold either F2 or DEL on boot, look up the key for your motherboard manufacturer). In the BIOS there will be a option to upgrade the BIOS from USB. Run that and you should be good to go!
Taking care of yourself is important. Hopefully the psychiatrist can prescribe you something that will make socializing a little bit easier.
After that, accept that you are going to make small steps. Calling yourself a failure rarely helps. Think of it like exercise. You don’t start out strong or fast. You get there slowly.
Find someone you can chat with. It’s okay if it’s online only and has nothing to do with Communism. Go to a restaurant alone. Find anything that makes you a bit uncomfortable and do it. It doesn’t matter that these aren’t directly furthering the cause. With time, things will get a bit easier.