It's okay to use an AI to support development. However, you need to make sure you know the code base and only use the ia to speed up the process. In view of the project you've presented, there are big doubts.
As for his comment, it's relevant, he's just stating the facts. No criticism on his part. You should know that the logo doesn't inspire confidence, that it's clearly visible that it's created with DALL-E and that the project lacks professionalism, He's clearly talking about the code too, not just the logo.
Another example of using chatGPT's suggestions and problem solving, it made you use obsolete resources like callout manager. If you had done your own research or simply taken the time to learn about the resource, you wouldn't have made this mistake.
If I can give you some advice, learn the language more deeply and create your own functions, don't just use open source or ChatGPT's suggestions, that's not the best way to learn, but don't give up on AI either, as long as it's a simple aid and a boost to productivity.
Good luck !