Magento 2 – How to Translate Text Without Auto Translate

Looks like you install a custom version of PHP in your local environment (MAMP?). In this case, you need use full path to PHP executable to run Magento cli.

For example for MAMP I use /Applications/MAMP/bin/php/php7.0.10/bin/php bin/magento

If you have access to the DB of the site, take a look at the setup_module table to see if your module is showing up there. It should have the name and the current module version. If it's not showing up in that table, then your configuration files are incorrect. A module only requires two files to be registered:

app/code/{{vender_name}}/{{module_name}}/etc/module.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="{{vender_name}}_{{module_name}}" setup_version="0.0.1"/>
</config>

and

app/code/{{vender_name}}/{{module_name}}/registration.php

<?php
    \Magento\Framework\Component\ComponentRegistrar::register(
        \Magento\Framework\Component\ComponentRegistrar::MODULE,
        '{{vender_name}}_{{module_name}}',
        __DIR__
    );

If your module is registered correctly, then your next step is de-bugging the module's code. I would recommend looking at the layout xml files and the controller files that should be hitting, as this is the first step in any module's life cycle.