I have a self-hosted Matomo install. We recently purchased the WooCommerce Analytics plugin.
When I enable WooCommerce Analytics (Premium) on our WordPress install, hosted at Kinsta, adding products to the cart results in a 502 Bad Gateway error.
When I check the logs at Kinsta, I see this error:
*442 upstream sent too big header while reading response header from upstream, client: 220.127.116.11, server: staging-derooijfotografienl.kinsta.cloud, request: “GET /?add-to-cart=57155 HTTP/1.1”, upstream: “fastcgi://unix:/var/run/php7.4-fpm-derooijfotografienl.sock:”, host: “:39049”, referrer: “”.
Does anyone recognize this behaviour? And perhaps know a solution?