Ajax failure – Internal Server Error

[anoustous]

When I try to access the additional Modules\Activate Administrator\URL Parameters White List…
I’ve a “Ajax failure – Internal Server Error”

Here is the error I get in the network tab :
POSThttps://psychedeclic.fr/wp-admin/admin-ajax.php
[HTTP/2 500 Internal Server Error 115ms]
POST
https://psychedeclic.fr/wp-admin/admin-ajax.php
État
500
Internal Server Error
VersionHTTP/2
Transfert674 o (taille 180 o)
Politique de référentstrict-origin-when-cross-origin

access-control-allow-credentials
true
access-control-allow-origin
https://psychedeclic.fr
cache-control
no-cache, must-revalidate, max-age=0
content-type
text/html; charset=UTF-8
date
Mon, 31 Jan 2022 17:25:44 GMT
expires
Wed, 11 Jan 1984 05:00:00 GMT
referrer-policy
strict-origin-when-cross-origin
server
Apache
x-content-type-options
nosniff
X-Firefox-Spdy
h2
x-frame-options
SAMEORIGIN
x-powered-by
PHP/8.1
x-robots-tag
noindex

Accept
text/html, */*; q=0.01
Accept-Encoding
gzip, deflate, br
Accept-Language
fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
Connection
keep-alive
Content-Length
74
Content-Type
application/x-www-form-urlencoded; charset=UTF-8
Cookie
wordpress_sec_75660fade0225c1574831fe427342d28=admin8561%7C1643812859%7CruRBIjAy10SOdBK17oAxwtFvsjc6xj7ihyUHB5QcGrA%7C7136b0b82bb94a9b6a16cc91b15413f24215f3bbf78c3ceb47955c0c5c2cf327; phpbb3_syweb_u=1; phpbb3_syweb_k=; phpbb3_syweb_sid=f774e4286c16a600e68dbaf56a391022; wp-settings-time-1=1641477152; wp-settings-1=editor%3Dtinymce%26imgsize%3D%26libraryContent%3Dbrowse%26mfold%3Do; _ga_07JR4WQPD7=GS1.1.1643646782.24.1.1643647838.0; _ga=GA1.1.819029782.1641287665; wordpress_test_cookie=WP%20Cookie%20check; wordpress_logged_in_75660fade0225c1574831fe427342d28=admin8561%7C1643812859%7CruRBIjAy10SOdBK17oAxwtFvsjc6xj7ihyUHB5QcGrA%7C1ba494f9c2187142afc508ba5f7fd4e54eb33edfd685cd36d16f7ab98d16f440
Host
psychedeclic.fr
Origin
https://psychedeclic.fr
Referer
https://psychedeclic.fr/wp-admin/network/settings.php?page=settings-user-role-editor-pro.php
Sec-Fetch-Dest
empty
Sec-Fetch-Mode
cors
Sec-Fetch-Site
same-origin
TE
trailers
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0

X-Requested-With
XMLHttpRequest

​Thanks for your help

[Author]

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