Cloudflare Worker for API endpoint returning Cloudflare error page

Under bursts of traffic some of my customers are seeing the Cloudflare error page instead of a response from my service.

I don't see anything in the logs that would indicate an issue coming from the worker logic.

Is my API endpoint getting throttled somehow? I'm on a paid plan which I assumed wasn't rate limited? It only seems to happen under bursts of traffic (relatively small bursts of less than 100).

Example:
Ray ID: 8aea1e9efd2576d2 2024-08-05 22:10:51 UTC
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