Issue with posting?

Question

PostgreSQL

Project on ASP.NET Core, PostgreSQL database. Hosted on nginx
The essence of the problem: there are about 300 records in the database, they need to be displayed as a list. As soon as I restart the server, everything works correctly, after a couple of clicks on the update button, such an error "ERR_HTTP2_PROTOCOL_ERROR 200" appears and a different number of records is displayed, then 10, then 15. What could be the problem?

Answer 1

Perhaps the error is related to the nginx configuration. What is the error in the nginx logs when the problem occurs? And in the application itself?
If you try to guess - check / increase if necessary
proxy_max_temp_file_size
client_max_body_size