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Looks like your generator and amp block are incorrectly designed. They need to have pins. You add them when you create/edit a single symbol, not the whole schematic. So you need to create a "component" for your blocks, add pins there and use these components in schematic. Or if you are lazy, use "pads" in your schematic (where grey circles are currently).

In order to help you better, Could you please send me the error screenshots？

What do you mean with this? Can you elaborate? Regards, Markus Virtanen HW / Electronics Designer

All text seems to be overlapping in your schematic quite alot. So, rotating and flipping components so that the text doesn't overlap. Also moving the text out of the overlapping area should help. Also, you do need decoupling to your +5V rail. The driver IC needs at least one 100nF and it would be nice to put a decoupling to every connector you have on the 5V pin. Also the same procedure to the 3V3 rail. Connectors usually have a reference designator on CN, X, J. So U is not a correct reference designator for a connector. I have tried to say this to EasyEDA support to fix these mistakes. I don't even understand why they have put a reference designator of U to any connector in their library. Nowadays, you need to fix this yourself and its not particularly fun. MOSFET circuitry needs to be flipped on the input side, so that the gate circuitry is below and drain is top. Also, I don't see any onboard fuses. Obviously when this is a motor driving circuitry, then this would definitely need some circuit protection devices. Let me know if you need to review your layout at some point. Regards, Markus Virtanen HW / Electronics Designer