Hi @blaise1,
Thanks for contacting us.
The theme update might have been interrupted, leaving an incomplete set of files.
The quickest fix is to upload a fresh copy of Sydney:
- Download the latest version of Sydney from here
- Log into your hosting control panel (cPanel, File Manager, or FTP)
- Navigate to wp-content/themes/ and delete or rename the existing sydney folder
- Upload and extract the fresh copy you downloaded
This replaces any missing or corrupted files without touching your content or settings.
Please let us know if this helps.
Thanks!