POT file update is needed, in order to be able to translate HireBee
Your POT file which you can download, has not been updated for version 1.1, and there are issues in your PHP code that makes it impossible for PoEdit to scan the source code and find the translation.
I.e. the comments.php file
<h2 id="left-hanger-add-review"><?php _e( ( HRB_PROJECTS_PTYPE == get_post_type() ? 'Clarification Board' : 'Comments' ), APP_TD ); ?></h2>
Because you use a statement in the _e function, poEdit can not finde the text 'Clarification Board' or 'Comments', when it updates the texts from the sourcecode.
The POT file is not updated to version 1.1 so if you update your translation from the POT file, you loose other translated texts.
Please make sure that your language packs are on the same version as your released software.