Error message

• Notice: Undefined variable: delimiter in rp_breadcrumbs_breadcrumb() (line 440 of /var/www/html/sites/all/modules/custom/rp_breadcrumbs/rp_breadcrumbs.module).
• Notice: Undefined variable: delimiter in rp_breadcrumbs_breadcrumb() (line 440 of /var/www/html/sites/all/modules/custom/rp_breadcrumbs/rp_breadcrumbs.module).