This error usually comes up when the OpenAI API key runs into rate limits, for example, if several requests are sent too quickly in a row. Clay retried six times back-to-back, which may have triggered those limits even if you still have credits. The best next step is to wait a minute and try again, or break larger actions into smaller batches to reduce the load. You can also review your current request and token limits in your OpenAI account. If it keeps happening, it may be worth checking with OpenAI about higher limits.