Double email issue

We are using wp-job-manager-resumes for resume submission. But it is shooting duplicate mails to people whose mail ids are mentioned in the resume submission settings. The mail is getting triggered from wp-content/plugins/wp-job-manager-resumes/includes/class-wp-resume-manager-email-notification.php from what i can see. Also same mail is getting triggered after submitting application for resume whose template is present in wp-content/plugins/wp-job-manager-resumes/includes/class-wp-resume-manager-apply.php. So can someone help me with this.