Cloning in WP Workbench

OS: Debian Linux 13
Webmin: 2.630
Virtualmin: 8.1.0 Pro
Webserver: Nginx version 1.26.3
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I cloned a site, but the URL of the clone site is still the URL of the original, so I am redirected when trying to login. When I go the the front end URL, I have a 404 error.

When I try to change the URL of the clone site under settings, I receive this error:

Thanks

Applying WordPress settings ..
Updating home URL ..
.. error : could not update option home. �
Updating site URL ..
.. error : could not update option siteurl. �
.. done
Updating manager cache for this instance ..
.. done```