OCS shows strange characters

Hello,
I have version OCS 2.3.6.0 installed and these are the characteristics of the server:
Operating System: WINNT
PHP version: 5.6.40
Apache version: Apache / 2.4.37 (Win32) OpenSSL / 1.0.2p
Driver data base: mysql
Data Base Server Version: 10.1.37-MariaDB

The problem is that some pages show strange text, for example:
##user.role.authors##
### ##manager.setup.aboutConference.accessPolicy##
##manager.setup.additionalContent.accessPolicy.description##
##manager.setup.aboutConference.archiveAccessPolicy.description##

They are just a few examples, but there are more. What can I do to show the label and not this??

Thanks.

This indicates that the phrase needed has not yet been translated in the language you are using in OCS.

The Translator Plugin for OJS 2.x may work with OCS. Otherwise, you will need to fill out the translated content manually in the XML files directly.

What language are you working with?

Thanks for answering. I am working with the Portuguese.

For example, the pt_PT locale is missing the the key and translation for user.role.authors:

But this key and translation is present in the pt_BR locale:

For reference, you should be able to find the English translation of the key in the en_US locale: