In the root directory, my .htaccess file looks like this:

##
# Elxis 5.x htaccess file
# Copyright (C) 2006-2019 Elxis.org. All rights reserved.
# License: http://www.gnu.org/copyleft/gpl.html GNU/GPL
# Elxis CMS is a Free Software
##

# Uncomment the lines bellow to add support for HTML5 video and audio
# AddType video/ogg .ogm
# AddType video/ogg .ogv
# AddType video/ogg .ogg
# AddType video/webm .webm
# AddType audio/webm .weba
# AddType video/mp4 .mp4
# AddType video/x-m4v .m4v

## Uncomment the following line, if it produces erors, comment it again
# Options -Indexes +FollowSymLinks

#
#  mod_rewrite in use
#

RewriteEngine On

# The following line tells the web server where your Elxis installation is located in relation
# to the web server root directory. By default this is set to the www root folder ( RewriteBase / ).
# If you have installed Elxis in a sub-folder then set this path properly.
# For example if your elxis site is accessible via this URL http://www.example.com/elxis/
# You should set: RewriteBase /elxis/

RewriteBase /

RewriteCond %{REQUEST_URI} ^.*(wp-login.php)|(wp-admin/)|(wp-content/)|(wp-includes/).*
RewriteRule .* - [F,L]

#
# Rewrite rules for sample multisites appeared as sub-folders of the main site
# RewriteRule ^one/stargate14/inner.php stargate14/inner.php [L]
# RewriteRule ^one/inner.php(.*) inner.php [L]
# RewriteRule ^one/(.*) $1
# RewriteRule ^two/stargate14/inner.php stargate14/inner.php [L]
# RewriteRule ^two/inner.php(.*) inner.php [L]
# RewriteRule ^two/(.*) $1
#

#RewriteCond %{REQUEST_FILENAME} !-f
#RewriteCond %{REQUEST_FILENAME} !-d

# If you have renamed the administration folder change "stargate14" to the name you have set.
RewriteRule ^stargate14/inner.php(.*) stargate14/inner.php [L]
RewriteRule ^stargate14/(.*) stargate14/index.php [L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*) index.php

#
## Security rules. Comment them if they cause problems to your site
#
# Block out any script trying to base64_encode crap to send via URL
# This rule is commented because it may cause some Elxis features to not work!
# RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]
# Block out any script that includes a <script> tag in URL
RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%3E) [NC,OR]
# Block out any script trying to set a PHP GLOBALS variable via URL
RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
# Block out any script trying to modify a _REQUEST variable via URL
RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
# Send all blocked request to homepage with 403 Forbidden error!
RewriteRule ^(.*)$ index.php [F,L]


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Oh great, did as you suggested and it worked!

Hello,
Copy includes/install/data/htaccess.txt to the elxis root folder and rename it to .htaccess

Hi there,
I was thinking to use this component to allow translators to edit transations of articles. But if they log in they can only create their articles, they can't edit articles created by someone else. Is there a way to change this? To let them edit articles authored by someone else? Or is there a way to change the author of an article to give them access that way?

Ok, it seems DeepL Pro is not the correct plan for access to DeepL's API. To get access to DeepL's API, you need to subscribe to the "DeepL API plan" which is different to DeepL Pro.
https://support.deepl.com/hc/en-us/articles/360020031840-Error-code-403

Yes, because you need a PRO account and a PRO API key.