Our Development team are working on fixing the issue you may be experiencing with exporting eForm submissions.
However, eForm Submissions will be emailed to the designated email addresses as provided on the two eForm sections as shown below:
1. Edit the eForm page as shown below - email addresses provided here will receive this specific eForm's submissions
2. On the eForm settings page - email addresses provided here will receive all eForm submissions
We will update you as to when the exporting eForm submission issue has been resolved.