Save Emails to CSV file not working

Based on multiple security warnings, I want to disable to Subscribe2 plugin. Before doing that, I want to have a list of subscribers. I tried the button titled “Save Emails to CSV file” button and a file was created. However, it only includes the column headings and no data. On the odd chance that the entries needed to be checked, I checked the visible list and tried saving the e-mails, and that did not work either.

I, and many others will appreciate a safe way of exporting the e-mail addresses for emergencies like this. Thank you for your expedient attention to the whole or part of the problem.