Gemini Ai Not Working?

[NH80823]

It shows error code:
// gemini error getting synonyms: 404 NOT_FOUND. {'error': {'code': 404, 'message': 'models/gemini-2.0-flash-exp is not found for API version v1beta, or is not supported for generateContent. Call ListModels to see the list of available models and their supported methods.', 'status': 'NOT_FOUND'}}
// gemini error rephrasing: 404 NOT_FOUND. {'error': {'code': 404, 'message': 'models/gemini-2.0-flash-exp is not found for API version v1beta, or is not supported for generateContent. Call ListModels to see the list of available models and their supported methods.', 'status': 'NOT_FOUND'}}
// gemini error getting insertions: 404 NOT_FOUND. {'error': {'code': 404, 'message': 'models/gemini-2.0-flash-exp is not found for API version v1beta, or is not supported for generateContent. Call ListModels to see the list of available models and their supported methods.', 'status': 'NOT_FOUND'}}

Also Love your project! I haven’t found any typing simulator with AI rephrasing and synonyms like this one. Pretty cool stuff.