Plugin Contributor
bcrodua
(@bcrodua)
Hi,
That message means your site is outputting extra whitespace or unexpected characters, usually from a theme or plugin file (for example, blank lines outside , UTF-8 BOM, or debug output). This extra output can corrupt backup files when downloading, which may cause restore failures.
To fix it, try switching to a default theme, disabling plugins one by one, and make sure WP_DEBUG and WP_DEBUG_DISPLAY are disabled. Once the extra output is removed, the warning will disappear.
You can find full troubleshooting steps here:
https://teamupdraft.com/documentation/updraftplus/topics/general/troubleshooting/problems-with-extra-white-space/
Best Wishes,
Bryle
Hey, thanks for the answer but I can’t use the default theme or disabling plugins on live site.
Why this message is shown? I didn’t had it before and I using the plugin for long time and it saved me many time when updates breaks the site.
Plugin Contributor
bcrodua
(@bcrodua)
Hi,
This message appears when WordPress detects extra whitespace or unexpected output, usually from a theme or plugin update. It does not mean your backups are broken, especially if they are completing normally.
The warning is mainly informational and usually only affects backups downloaded via the browser, not cloud backups or restores.
Kindly check FAQ for more details here.
Best Wishes,
Bryle
