Error reference · Warning
ERR-004: License domain mismatch
This license is registered to a different site.
What it means
Some licenses are domain-locked at issuance (Enterprise optionally; Business by default). The plugin sees that you're trying to activate on siteA.com while the license was issued for siteB.com.
Fix it (move the license to this site)
- Visit /account/licenses.
- Find this license; under Sites used click Deactivate next to the old site.
- Come back to the new site's WP Admin → Image Rotation → License → Activate.
Fix it (multi-site license, just a misconfig)
The plugin reads site_url() to determine the host. If you've set up the site at https://www.example.com but registered the license to https://example.com (or vice versa), they don't match. Update WP Settings → General → Site Address to match what's on the license, then re-activate.