UpdraftPlus backup: Warning: If you can still read these words after the page finishes loading, then there is a JavaScript or jQuery problem in the site

UpdraftPlus backup: Error:..

Users of the WordPress UpdraftPlus Backup plugin may sometimes have a problem using the backup, and may notice the following words at the top of the backup page>:

If you can still read these words after the page finishes loading, then there is a JavaScript or jQuery problem in the site

If this happens to you, then you need to find out which other plugin is creating the conflict.

I have so far found TWO that are running when they do not need to, or just conflict:

FreetoBook

Wordfence

Both of these stopped UpdraftPlus working on two separate occasions.

The fix was to deactivate the plugin, until an upgrade comes out to fix it.