Help about program can't load complete

no pre assembled

@azize please edit your post, using the pencil icon at the bottom, and add triple backticks at the beginning and end of your code so that it displays correctly.
Triple backticks look like this:
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Pete.

thanks a lot for your attention and help
i change D3 and SD3 to D5 and D6 and so upload codes and work well
fixed

@azize you’ve edited your unformatted code, but haven’t used triple backticks, despite me giving you triple backticks to copy/paste.

Please fix your code formatting otherwise it will be deleted.

Pete.

excuse me sir
i can’t understand that is your mean exactly. i don’t understand what is triple backticks

I’ve already shown you…

Pete.

oh thanks