Google colab disrupted when loading again to continue training, it run from begining. How i can fix it?

I have a NLI task, clone code from here: https://www.bing.com/ck/a?!&&p=a7b276691253b007JmltdHM9MTY5NDA0NDgwMCZpZ3VpZD0zZjUwZDk3NS0xNDg0LTY0MDMtMjQyZi1jYTA1MTVlMjY1NjImaW5zaWQ9NTE5Ng&ptn=3&hsh=3&fclid=3f50d975-1484-6403-242f-ca0515e26562&psq=sente[https%3A%2F%2Fgithub.com%2FUKPLab%2Fsentence-transformers](https%3A%2F%2Fgithub.com%2FUKPLab%2Fsentence-transformers%3Ffbclid%3DIwAR3Pz7-C_6hamXZdNeFlhUg9WLsoLyCvQq99eV5I__ZJcd7VI-o3wYoGJ1M)&u=a1aHR0cHM6Ly9naXRodWIuY29tL1VLUExhYi9zZW50ZW5jZS10cmFuc2Zvcm1lcnM&ntb=1

But when i try to load again this code, it run again from begining. If anyone have work on this task like this. How can i fix it. Thank you.