debug.log reveals BP_Groupemail_Extension::create_screen_save() should be

Advise much appreciated:

[13-May-2016 16:28:48 UTC] PHP Strict Standards: Declaration of BP_Groupemail_Extension::create_screen_save() should be compatible with BP_Group_Extension::create_screen_save($group_id = NULL) in /home/dealsm5/public_html/wp-content/plugins/bp-group-email/includes/bp-group-email.php on line 193

Thank you
Steven