Guys, why doesn't AI work in my projects? Is it because I used a free API, or what would be the reason? Like I have built multiple AI projects, I know the Claude API key is paid, but ChatGPT isn't paid right, it's the 3rd API key I took from ChatGPT, but it's not working. Kindly please, could someone explain what the exact reason could be and what I should do? I'm really exhausted.