Return to a previous version is simple on this page https://www.ads-software.com/download/release-archive/ download the desired version. First, disable all plugins, then by FTP you delete the wp-admin and wp-includes folder and upload those of the downloaded version, then you replace the following files also by the downloaded version:
- index.php
- wp-activate.php
- wp-blog-header.php
- wp-comments-post.php
- wp-cron.php
- wp-links-opml.php
- wp-load.php
- wp-login.php
- wp-mail.php
- wp-settings.php
- wp-signup.php
- wp-trackback.php
- xmlrpc.php
and finally the desktop access to the message you must update the database appears, you click and voila, you re-enable plugins and you have your WordPress running on an earlier version.
Usually it is a process that does not give failures, but recommend making a backup to prevent.
Regarding updating the plugin, the truth is not as tarden, but hopefully be resolved quickly.
