"Rate Limited" is not an error. It is a notification that one or more of your clients have been rate limited.
In your case, the client is the router, and from the brief snippet of the logs contained in your debug log, it appears that all your DNS traffic from clients is shown as coming from the router's IP.
In this case, if your router is rate limited, then all the individual clients are also being rate limited. During the active period of rate limiting, no DNS queries will be processed from the rate limited clients.
[2024-01-30 18:05:07.239 241M] Rate-limiting 10.88.0.1 for at least 21 seconds
[2024-01-30 18:05:28.056 241/T271] Ending rate-limitation of 10.88.0.1
You have the option of changing the rate limit.