Still i get error please fix It. I provided example code must use refferance, and use Gemini 2.0 Flash as in referance ""

Server not started, please also mentioned on script that server start. And I expect you can give me working image genration api sho

Why stil server not started, show in console that server starterd on port {port} And remember this example code "" and if success then show That image, else show response json. 

I enter vaild api key but still face error "" fix it.