Need Help with Elecrow plant watering system v2.0

I just got this kit and after getting stuck and not being able to turn off the sample blink program gave it to my son to play with and now the oled screen doesnt work. Ive searched everywhere and wonder if he deleted a program for the screen. I tried to reload the sample program and it is giving me the error of not having the “U8glib”. i cant find it to load it if i need it. I need to get this thing back to operational. PLEASE HELP.

Please do this:

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pd1434:
error of not having the "U8glib".

Install it.
If you don't have it, ask the supplier of your kit for a copy.