RuntimeException thrown with message "Request rejected, the given HTTP host is not in the "allowed_hosts" list"

Stacktrace:
#7 RuntimeException in /home/flighth/ilias-lms/ILIAS-11.3/components/ILIAS/Init/src/Environment/HttpPathBuilder.php:101
#6 ILIAS\Init\Environment\HttpPathBuilder:build in /home/flighth/ilias-lms/ILIAS-11.3/components/ILIAS/Init/classes/class.ilInitialisation.php:374
#5 ilInitialisation:buildHTTPPath in /home/flighth/ilias-lms/ILIAS-11.3/components/ILIAS/Init/classes/class.ilInitialisation.php:830
#4 ilInitialisation:initSettings in /home/flighth/ilias-lms/ILIAS-11.3/components/ILIAS/Init/classes/class.ilInitialisation.php:1315
#3 ilInitialisation:initClient in /home/flighth/ilias-lms/ILIAS-11.3/components/ILIAS/Init/classes/class.ilInitialisation.php:1168
#2 ilInitialisation:initILIAS in /home/flighth/ilias-lms/ILIAS-11.3/components/ILIAS/Init/src/AllModernComponents.php:201
#1 ILIAS\Init\AllModernComponents:enter in /home/flighth/ilias-lms/ILIAS-11.3/artifacts/bootstrap_default.php:2887
#0 entry_point in /home/flighth/ilias-lms/ILIAS-11.3/public/index.php:48


-- GET Data --

empty


-- POST Data --

empty


-- Files --

empty


-- Cookies --

empty


-- Session --

empty


-- Server/Request Data --

USER                     : flighth
SCRIPT_NAME              : /index.php
REQUEST_URI              : /
QUERY_STRING             : 
REQUEST_METHOD           : GET
SERVER_PROTOCOL          : HTTP/1.1
GATEWAY_INTERFACE        : CGI/1.1
REMOTE_PORT              : 36842
SCRIPT_FILENAME          : /home/flighth/ilias-lms/ILIAS-11.3/public/index.php
SERVER_ADMIN             : postmaster@www.lms.flightpaper.fr
REMOTE_ADDR              : 51.15.192.215
SERVER_PORT              : 80
SERVER_ADDR              : 10.131.40.4
SERVER_NAME              : www.lms.flightpaper.fr
SERVER_SOFTWARE          : Apache
SERVER_SIGNATURE         : 
HTTP_REMOTE_IP           : 51.15.192.215
HTTP_X_IPLB_UNIQUE_ID    : 330FC0D7:D052_923BD198:0050_6A95F34A_1F47DB:1380C4
HTTP_FORWARDED           : for=51.15.192.215; proto=http; host=www.lms.flightpaper.fr
HTTP_X_REMOTE_PROTO      : http
HTTP_X_REMOTE_IP         : 51.15.192.215
HTTP_X_REMOTE_PORT       : 53330
HTTP_X_FORWARDED_PORT    : 80
HTTP_ACCEPT_ENCODING     : gzip, deflate
HTTP_ACCEPT_LANGUAGE     : en-US,en;q=0.9
HTTP_ACCEPT              : text/html,application/xhtml+xml
HTTP_USER_AGENT          : Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0 Safari/537.36
HTTP_X_OVHREQUEST_ID     : 544ddcf4dfb4211ffe0417721211f7c0
HTTP_X_FORWARDED_PROTO   : http
HTTP_X_FORWARDED_FOR     : 51.15.192.215
HTTP_X_PREDICTOR         : 1
HTTP_HOST                : www.lms.flightpaper.fr
CFG_CLUSTER              : cluster131
HTTP_AUTHORIZATION       : 
SCRIPT_URI               : http://www.lms.flightpaper.fr/
SCRIPT_URL               : /
GEOIP_LONGITUDE          : 2.338700
GEOIP_LATITUDE           : 48.858200
GEOIP_AREA_CODE          : 0
GEOIP_DMA_CODE           : 0
GEOIP_COUNTRY_NAME       : France
GEOIP_COUNTRY_CODE       : FR
UNIQUE_ID                : apXzSv4rsj6j70SsVG1EWwAABGM
DOCUMENT_ROOT            : /home/flighth/ilias-lms/ILIAS-11.3/public
ENVIRONMENT              : production
APP_ENGINE_VERSION       : 8.4
APP_ENGINE               : php
FCGI_ROLE                : RESPONDER
PHP_SELF                 : /index.php
REQUEST_TIME_FLOAT       : 1788212042.1621
REQUEST_TIME             : 1788212042
argv                     : Array
                         (
                         )
                         
argc                     : 0


-- Environment Variables --

USER                     : flighth
SCRIPT_NAME              : /index.php
REQUEST_URI              : /
QUERY_STRING             : 
REQUEST_METHOD           : GET
SERVER_PROTOCOL          : HTTP/1.1
GATEWAY_INTERFACE        : CGI/1.1
REMOTE_PORT              : 36842
SCRIPT_FILENAME          : /home/flighth/ilias-lms/ILIAS-11.3/public/index.php
SERVER_ADMIN             : postmaster@www.lms.flightpaper.fr
REMOTE_ADDR              : 51.15.192.215
SERVER_PORT              : 80
SERVER_ADDR              : 10.131.40.4
SERVER_NAME              : www.lms.flightpaper.fr
SERVER_SOFTWARE          : Apache
SERVER_SIGNATURE         : 
HTTP_REMOTE_IP           : 51.15.192.215
HTTP_X_IPLB_UNIQUE_ID    : 330FC0D7:D052_923BD198:0050_6A95F34A_1F47DB:1380C4
HTTP_FORWARDED           : for=51.15.192.215; proto=http; host=www.lms.flightpaper.fr
HTTP_X_REMOTE_PROTO      : http
HTTP_X_REMOTE_IP         : 51.15.192.215
HTTP_X_REMOTE_PORT       : 53330
HTTP_X_FORWARDED_PORT    : 80
HTTP_ACCEPT_ENCODING     : gzip, deflate
HTTP_ACCEPT_LANGUAGE     : en-US,en;q=0.9
HTTP_ACCEPT              : text/html,application/xhtml+xml
HTTP_USER_AGENT          : Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0 Safari/537.36
HTTP_X_OVHREQUEST_ID     : 544ddcf4dfb4211ffe0417721211f7c0
HTTP_X_FORWARDED_PROTO   : http
HTTP_X_FORWARDED_FOR     : 51.15.192.215
HTTP_X_PREDICTOR         : 1
HTTP_HOST                : www.lms.flightpaper.fr
CFG_CLUSTER              : cluster131
HTTP_AUTHORIZATION       : 
SCRIPT_URI               : http://www.lms.flightpaper.fr/
SCRIPT_URL               : /
GEOIP_LONGITUDE          : 2.338700
GEOIP_LATITUDE           : 48.858200
GEOIP_AREA_CODE          : 0
GEOIP_DMA_CODE           : 0
GEOIP_COUNTRY_NAME       : France
GEOIP_COUNTRY_CODE       : FR
UNIQUE_ID                : apXzSv4rsj6j70SsVG1EWwAABGM
DOCUMENT_ROOT            : /home/flighth/ilias-lms/ILIAS-11.3/public
ENVIRONMENT              : production
APP_ENGINE_VERSION       : 8.4
APP_ENGINE               : php
FCGI_ROLE                : RESPONDER
PHP_SELF                 : /index.php
REQUEST_TIME_FLOAT       : 1788212042.1621
REQUEST_TIME             : 1788212042
argv                     : Array
                         (
                         )
                         
argc                     : 0