Something wrong with my docker when executing some orders

I meet some error when I wanna to execute an order by using “docker exec -it /…/…”
Could anyone tell me how to solve this bug.pls

The command is not found. That’s not a bug. We know absolutely nothing about your image, how you created it, where that command should be found, so there is not much I can say.

Make sure the executable file exists in the container and its path is in the PATH variable.