Website links on home screen disappeared after device reboot

I saved websites to my home screen on my phone. But for whatever reason, every time I update, it erases those websites that I save on my phone. Earlier today, I restarted my phone. When I restarted it, this happened. I need to save my websites there, as I can't remember them. But every time I try, they disappear. How can I get them back? If it's relevant, it's a phone from Cricket Wireless.