Fatal Error when upgrading to 3.4.1 But everything works?

Try:
– switching to the Twenty Eleven theme by renaming your current theme’s folder inside wp-content/themes and adding “-old” to the end of the folder name using FTP or whatever file management application your host provides.

– resetting the plugins folder by FTP or phpMyAdmin.

– re-uploading all files & folders – except the wp-content folder – from a fresh download of WordPress.

– running the upgrade manually via wp-admin/upgrade.php

@fatburnerdrinks: It is impolite to interrupt another poster’s ongoing thread with a question of your own and it causes significant problems for the forum’s volunteers. Please post your own topic.

I appreciate you getting back to me …. The fix you are proposing is a little scary to me …. And I’m not sure why I need it?

Everything on the blog is working AOK! So would you please explain why I would need to do this fix …

Thank You…

It’s the initial basic troubleshooting needed to identify the source of the problems.

Esmi, are those 3 points in our post to all be done, or are they alternatives?
And if I were to do the “switching to the Twenty Eleven theme by renaming your current theme’s folder inside wp-content/themes and adding “-old” to the end of the folder name”, would it preserve my custom widgets, header, etc, or do I have to do those all over again in Twenty Eleven?