HTTP 500 on create bucket error":"Internal Server Error"

Kinto 15.1.1

Confgiuration of kinto instalation:

cli ( curl ) ->> nginx ( 1.18.0 ) --> uwsgi ( 2.0.18 ) -> kinto ( 15.1.1 )

uwsgi vassal kinito.ini

[uwsgi]
wsgi-file = /srv/kinto/app.wsgi
virtualenv = /srv/kinto/kinto-15.1.1/
socket = /run/kinto/kinto.sock
env = = KINTO_INI=/etc/kinto/kinto.ini
uid = kinto
gid = kinto
enable-threads = true
chmod-socket = 666
processes = 3
master = true
module = kinto
harakiri = 120
lazy = true
lazy-apps = true
single-interpreter = true
buffer-size = 65535
post-buffering = 65535
plugin = python3
logto = /var/log/uwsgi/uwsgi-kinto.log

Uwsgi Error:
[pid: 2715084|app: 0|req: 9/19] 10.29.4.69 () {38 vars in 527 bytes} [Fri Mar 17 11:31:56 2023] POST /v1/buckets => generated 177 bytes in 295 msecs (HTTP/1.1 500) 5 headers in 302 bytes (1 switches on core 0)

Nginx Access Log:
10.AA.BB.CC - xxx [17/Mar/2023:11:31:23 +0100] "POST /v1/buckets HTTP/1.1" 500 177 "-" "curl/7.85.0"
10.AA.BB.CC - xxx [17/Mar/2023:11:31:56 +0100] "POST /v1/buckets HTTP/1.1" 500 177 "-" "curl/7.85.0"

Start by reproducing POST /v1/buckets with curl through the nginx and uWSGI setup, then inspect the uWSGI error log and the KINTO_INI configuration at /etc/kinto/kinto.ini. Done means identifying why bucket creation returns HTTP 500 and verifying that the same request succeeds without the internal server error.

Written by the indexing model from the issue text.