WordPress Plugin version 19.4.0 has an issue that prevents future upgrades.

When you upgrade to version 19.4.0 (or afterwards) from version 19.3.5 (or below), you might encounter this error: "The plugin social-polls-by-opinionstage/opinionstage-polls.php has been deactivated due to an error: Plugin file does not exist."

The issue has already been resolved, however if you have already installed the 19.4.0 version you may still face the issue.

How to fix it:

  • Refresh (or go to) plugins screen
  • Click "Activate" on "Poll, Survey, Quiz, Slideshow, Form & Story Article" plugin
  • New version should be installed and issue fixed
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