Would it be this?

<entry key='geocoder.enable'>true</entry>
<entry key='geocoder.type'>nominatim</entry>
<entry key='geocoder.url'>http://nominatim.openstreetmap.org/reverse</entry>
<entry key='geocoder.key'>MY API KEY</entry>

The config from your last comment is correct, but it would only work in 3.10. Version 3.9 doesn't support API key for Nominatim server.

Ha, good, perfect. So I'll be updating to version 3.10. Any tips, if possible, disable the calendar option in the settings menu?

You can remove it in the code.

Okay, Anton, first of all thanks for the support.

I made the installation of the system using the mysql database, my impasse is about phpmyadmin because I can not access it. See if you can guide me.

Commands I sent:

sudo apt-get install mysql-server libapache2-mod-auth-mysql php5-mysql

sudo apt-get install php5 libapache2-mod-php5 php5-mcrypt

mysql -u root -p my_password

CREATE DATABASE my_database;

CREATE USER 'my_user'@'localhost' IDENTIFIED BY 'my_password';

GRANT ALL PRIVILEGES ON my_database.* TO my_user@localhost;

FLUSH PRIVILEGES;

exit

sudo apt-get install phpmyadmin

sudo php5enmod mcrypt

sudo cp -r /usr/share/phpmyadmin/ /var/www/html/phpmyadmin

service apache2 restart

When I try to access the browser in my_ip/phpmyadmin nothing appears.

What does it all have to do with Traccar and this topic?

Sorry, I have nothing to do with the topic in question, just a question that has come to me now when trying to access the database through phpmyadmin

Disregard the above question, I was able to access the database by phpmyadmin. Many thanks Anton for the help