Renaming the navigation item "Rendez vous"

Hello,
first: great plugin! Thank you very much!

Now my question: I would like to rename the navigation item “Rendez vous”.

I tried this with the following code in the functions.php:
1. $bp->bp_options_nav[‘groups’][‘rendez-vous’][‘name’] = ‘My Name’;
2. $bp->bp_options_nav[$bp->groups->current_group->slug][‘rendez-vous’][‘name’] = ‘My Name’;

Both Versions are not working.
Could you help me?

Best regards
fruehstarter

https://www.ads-software.com/plugins/rendez-vous/