Fatal error on activation

Hello,
Whenever I try to activate this plugin, I have this message:

The extension could not be activated because it triggered a fatal error.

Warning: require_once(/home/…/plugins/clicface-trombi/includes/class-collaborateur.php): failed to open stream: No such file or directory in /home/stepatri/public_html/dossiers/plugins/clicface-organi/clicface-organi.php on line 13