Trying to resolve the remote i/0 error

I’m using a jetson nano for a drone prototype I’m trying to build and in the setup stages of it ( you could call it testing ) I’m trying to test my main lift motors using the nano and a pca9685 i2c device , ( mind you I’m not a expert tech and coder i used most of my codes from ai ) but everytime I try to resolve the issue with the code which was used to test it keeps giving me the remote i/o error , which i tried fixing with whatever fixes I could find , could anyone help?