In the Widget of employees in the icons of social networks the icon of awesome appears blank, because they placed the fa class instead of fab example:
<li> <a class = "facebook" href = "<? Php echo esc_url ( $ facebook);?> "target =" _ blank "> <i class =" fa fa-facebook "> </i> </a> </li>
Try to correct it in the widgets / fp-employees.php file without having a positive response! What file or function controls that action?