Error Message: "Login URL to WordPress admin dashboard is incorrect."
What causes this?
This error happens if the login URL is showing an error (404 error, 503 error, etc).
How to fix It
Make sure that your domain is pointing to the previous hosting's server.
After the domain is pointing to your previous hosting server, check if the login URL is accessible. If it's still not accessible, contact previous hosting support to troubleshoot the error.
Once everything is verified, try submitting the migration request again.