This error appeared when I had to process a large request with streaming enabled. For example, rewriting a 500-word article shows this error, but a 50-word article doesn’t.

Fix: It seems the GET method is used when streaming is enabled, making the URL request very long (with the prompt in the URL). This leads to error 414, which points to the URL length exceeding the allowed maximum on the server. I added this in the apache conf file and solved it:

Disabling GZIP to solve streaming and caching issues: to solve this, you can install an alternative compression module on the server called Brotli. It works just as well for caching and does not interfere with streaming.