TOPIC: [SOLVED] 502 Bad Gateway

Installed DT register 3.2.8 on a joomla 3.8.5 system with php 5.6.35

All seems fine except in the Admin -> DT Register-> Fields
The page displays with a 502 Bad Gateway
I have enable max php errors but not more information.
Nothing in the joomla logs.

Well, that's certainly a new one! You'll have to submit a ticket on this one for sure.

It was hosting related
I have resolved the problem.

The final error found in /var/log/nginx/joomla_https_error.log was:
"upstream sent too big header while reading response header from upstream"
Cause by one of the calls the DTRegister component was doing.

The header size exceeded the default configuration size for NGINX
So did these change to the config.
fastcgi_buffers 16 16k;
fastcgi_buffer_size 32k;

in both of the nginx.conf