AI Assistant cannot generate html

According to BSS guide using AI Assistance, I have trouble on AI Assistance. My AI Assistance always tell me a word exceed token. Can you help me to solve the problem ?

Have you added an AI key and have paid for tokens for your chosen AI assistance tool?

Yes, I do. I am using openAI token by paid

Maybe check your credits.

I just did and able to work fine on all models

Thanks for your advice