Incorrect hook for loading text domain file / Let me help and commit

This like should be loaded on ‘init’ or ‘plugin_loaded’
https://plugins.trac.wordpress.org/browser/bbpress-new-topics/trunk/bbpress-new-topics.php#L56

This wil fix this issue:
https://wordpress.org/support/topic/language-file-name-1/

I am willing to help if you give me commit access. If this plugin will be updated , it can also be translated via the GlotPress / Polyglot project.