You are welcome! Please don’t re-install the server just because of the broken boot. It’s fixable. Ask your ISP to do it for you. You could technically do it via provider’s console by booting from USB stick and chrooting to your current installation but that requires some knowledge. If you don’t go with ISP solution (which is easiest), try Googling as this is quite common issue. I am afraid, we are unable to provide you with more details/support on it. Sorry.