How serious is a IOPub data rate exceeded warning

For some reason I am getting this warning. Not sure why as the code hasn’t changed. I’m using python 3.11 and using a rest api.

It tells me to change the ServerApp.iopub_data_rate_limit` but I don’t know how to do that??

[W 2024-01-11 14:39:33.983 ServerApp] IOPub data rate exceeded.
The Jupyter server will temporarily stop sending output
to the client in order to avoid crashing it.
To change this limit, set the config variable
--ServerApp.iopub_data_rate_limit.

Current values:
ServerApp.iopub_data_rate_limit=1000000.0 (bytes/sec)
ServerApp.rate_limit_window=3.0 (secs)