Hi there,
I've tried to replicate this issue locally seems like I'm unable to reproduce the issue
However I've make a temporary fix for you in the file:
.../administrator/components/com_easysocial/includes/string/string.php
Can you please give it a try.
And can we(our developers) have a permission to troubleshoot further on this issue in your site? So we can make a proper fix for this?